modify isoleucine to show its structure at ph 1 and ph 13. modify each amino acid by adding or removing atoms or bonds and by adding charges where appropriate.

Answers

Answer 1

Isoleucine is an amino acid that has the following structure at a pH of 1:

What is isoleucine?

Isoleucine is an essential amino acid, which means that the human body cannot produce it and it must be obtained through diet. Isoleucine is one of the 20 standard amino acids that are commonly found in proteins. It has a specific chemical structure of H3N-C(CH3)3-COOH. Isoleucine has an aliphatic side chain with a branched carbon skeleton.

H3N-C(CH3)3-COOH

At a pH of 1, isoleucine is in its acidic form, with a carboxyl group (-COOH) that is ionized and carries a negative charge. This ionization occurs when a hydrogen ion (H+) is removed from the carboxyl group, making it -COO-.

At a pH of 13, isoleucine is in its basic form, with a carboxyl group (-COOH) that is fully ionized and carries a negative charge. This ionization occurs when a hydrogen ion (H+) is removed from the carboxyl group, making it -COO-.

To show the structure of isoleucine at a pH of 1:

H3N-C(CH3)3-COO-

To show the structure of isoleucine at a pH of 13:

H3N-C(CH3)3-COO-

To learn more about isoleucine from the given link:

https://brainly.com/question/4518186

#SPJ4


Related Questions

predict the direction favored of the following equilibrium equation

Answers

Comparing the stabilities of two negative charges on opposite sides of the equilibrium-arrows is one method for determining whether the reactants or products are preferred in an equilibrium. Because this side has less energy, it is preferred, whichever side has the more stable negative charge.

How do you know which side is favored at equilibrium?It is well knowledge that nature prefers low energy conditions. Remember that we may use the Protocol to compare the stability of two negative charges, where the more stable negative charge has a lower energy, and that this evaluation can be done while keeping this concept in mind.Comparing the stabilities of two negative charges on opposite sides of the equilibrium-arrows is one method for determining whether the reactants or products are preferred in an equilibrium. Because this side has less energy, it is preferred, whichever side has the more stable negative charge.Considering what transpires once you reach the more stable negative charge is one method to understand why this assertion is correct.Because you are content with where you are—a place of low energy—if you have recently moved to a more solid job, you are less likely to react negatively.By contrasting the negative charges on an oxygen and a nitrogen in the aforementioned example, we are putting the protocol to use. Since the charges on two atoms in the same row of the periodic table are being compared, we use electronegativity (#2 on the Protocol) to ascertain the relative stabilities.

To Learn more About equilibrium refer To:

https://brainly.com/question/26075805

#SPJ1

N2 + 3H2 → 2NH3

How many grams of NH3 could be made using 6 moles of H2 and excess N2?

__________ g of NH3

Answers

Answer:

68grams

Explanation:

Simply because if 3 moles = 2(14 + 3)

3 moles = 34 grams

6 moles = (6 × 34) ÷ 3

= 68grams

a steel ball of mass 0.400 kg is fastened to a cord that is 0.600 m long and fixed at the far end. the ball is then released when the cord is horizontal. at the bottom of its path, the ball strikes a 2.00 kg steel block initially at rest on a frictionless surface. the collision is elastic. (a) Find the speed of the ball just after the collision.
(b) Find the speed of the block just after the collision.

Answers

(a) The speed of the ball just after the collision is 0.13636 m/s. (b) The speed of the block just after the collision is 0.272728 m/s.

(a) The speed of the ball just after the collision can be found using the conservation of momentum principle. Before the collision, the momentum of the system is zero (since the block is at rest). After the collision, the momentum of the system is equal to the momentum of the ball and the block moving together.

Let vf be the final velocity of the ball and block after the collision. Then, the initial momentum of the system is 0, and the final momentum is given by:

= 0.400 kg x vf + 2.00 kg x vf

= (0.400 kg + 2.00 kg) x vf

By solving, we get:

vf = 0.400 kg / (0.400 kg + 2.00 kg) x √(g x 0.600 m)

vf = 0.1732 x √(g x 0.600 m)

The speed of the ball just after the collision is given by:

v = vf x 0.400 kg / (0.400 kg + 2.00 kg)

= 0.1732 x √(g x 0.600 m) x 0.400 kg / 2.400 kg

= 0.0726 x √(g x 0.600 m)

= 0.0726 x √(9.8 x 0.600)

= 0.0726 x 1.8782971

= 0.13636 m/s

(b) The speed of the block just after the collision is given by:

v = vf x 2.00 kg / (0.400 kg + 2.00 kg)

= 0.1732 x √(g x 0.600 m) x 2.00 kg / 2.400 kg

= 0.1452 x √(g x 0.600 m)

= 0.1452 x √(9.8 x 0.600 m)

= 0.1452 x 1.8782971

= 0.272728 m/s

To know more about speed please refer: https://brainly.com/question/11806405

#SPJ4

Krista is saving money to visit her relatives in Florida. It costs $1,250 for the plane ticket and $250 per night for the hotel. Using the function that represents the cost c based on the number of nights n Krista spends in Florida, how many nights can Krista stay in Florida if she saves $3,500?

Answers

Krista can stay 9 nights in Florida if she saves $3,500.

What is linear function?

The graph of a linear function is a straight line. The following is the form of a linear function.

a + bx = y = f(x).

One independent variable and one dependent variable make up a linear function. x and y are the independent and dependent variables, respectively.

Given:

Krista is saving money to visit her relatives in Florida.

It costs $1,250 for the plane ticket and $250 per night for the hotel.

Using the function that represents the cost c based on the number of nights n Krista spends in Florida,

f(x) = 250x + 1250.

If f(x) = 3500,

250x + 1250 = 3500

250x = 2250

x = 9

Therefore, she can stay for 9 nights.

To learn more about the linear function;

brainly.com/question/20286983

#SPJ1

compare and contrast the electromagnetic spectra and the atomic emission spectra. please use proper grammar and mechanics.

Answers

The electromagnetic spectrum and the atomic emission spectra are both related to the study of light and its properties. When an atom absorbs energy, electrons move to a higher energy level, and when they return to a lower energy level, they release energy in the form of light.

The electromagnetic spectrum is a range of all types of electromagnetic radiation, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. These types of radiation have different wavelengths, frequencies, and energy levels. The electromagnetic spectrum is a continuous spectrum, with no clear boundaries between the different types of radiation.On the other hand, atomic emission spectra refer to the light emitted by atoms when they are excited. The light emitted by atoms is always specific to the element and the energy level of the atom. . This light is specific to the element and the energy level of the atom, and it results in a line spectrum, which is made up of specific and discrete lines of different colors.In summary, the electromagnetic spectrum is a continuous range of all types of electromagnetic radiation, while atomic emission spectra refer to the specific light emitted by atoms when they are excited, resulting in a discrete line spectrum. The electromagnetic spectrum provides an overview of all types of radiation and their characteristics, while atomic emission spectra allow for the identification of specific elements by analyzing the light they emit.

To learn more about electromagnetic spectrum here:

https://brainly.com/question/23727978

#SPJ4

Label the species in the atomic-scale picture to represent the result when equimolar amounts of
aqueous barium hydroxide and aqueous iron(II) chloride are combined.
Ba
FeCl2
Fe(OH)2
Ba(OH)2
Ba2-
Cl2
CI
Fe
BaCl2
Fe2-
OH
H2O
solid =
Fe(OH)2

Answers

Answer: Green bubble --> Ba2+, Red bubble --> Cl-1, Blue bubble --> Fe2+, Yellow bubble --> OH-1, Solid --> Fe(OH)2 precipitate

What happens when you mix an aqueous solution of barium hydroxide and an aqueous solution of ferric chloride?

A mixture of aqueous barium hydroxide and aqueous ferric chloride gives barium chloride and ferric hydroxide. This reaction is shown below.

Ba(OH)2 (aq) + FeCl2 (aq)--> BaCl2(aq) + Fe(OH)2 (ppt)

Explanation:

Therefore, after reaction in an aqueous solution, there is 1 equivalent of free Ba2+ ions, 2 equivalents of free Cl-1 and Fe(OH)2 ppt. Fe(OH)2 precipitates with 1 equivalent of Fe2+ and 2 equivalents of OH-1 ions.

Hence,

Green bubble--> Ba2+

Red bubble --> Cl-1

Blue bubble --> Fe2+

Yellow bubble --> OH-1

Solid = Fe(OH)2 precipitate

To learn more about Chemical Reactions, click on the given link: https://brainly.com/question/11231920

#SPJ4

which is would be the empirical formula of a compound that has 4 moles of oxygen and 10 moles of nitrogen?

Answers

The empirical formula for a compound is 2N2O if it contains 4 moles of oxygen and 10 moles of nitrogen. A compound is a material that results from the chemical bonding of two or more elements.

The two types of bonding that hold the atoms of a molecule together most frequently are ionic and covalent. In chemistry, a substance's empirical formula is the simplest whole number ratio of the atoms that are present in it. The simple illustration of this concept is the empirical formula of sulphur monoxide, which is just NO.

Nitrogen = 10/14 = 0.71 M of nitrogen = 4/16 = 1/4 = 0.2 M of oxygen

Atomic mass is equal to 0.2/0.2 and 1

Atomic mass = 0.71/0.2 = 3.6, or around 4, and empirical formula = 2N2O.

Learn more about empirical formula here

https://brainly.com/question/14044066

#SPJ4

Reaction 1: CO(g) + 3 H2(g) = CH4(9) + H2O(9) K (CH4] [H,O] (CO][1,13 Reaction 2 CO2(g) + H2(9) CO(g) + H2O(9) CO||H,0] (CO2][H.] Reaction 3: CH4(9) + 2 H2O(g) = CO2(g) + 4 H2 (9) K3 =? The chemical equations and equilibrium expressions for two reactions at the same temperature are given above. Based on the information, which of the following expressions can be used to calculate the value of K3 for reaction 3 at the same temperature? A K3=( - Kı) + (- K2) B K3= (- K1) - (- K2) с K3 = K x K2 D K3 = KK

Answers

An expressions can be used to calculate the value of K3 for reaction 3 at the same temperature is

K3 ⇒ ( - Kı) + (- K2)

To determine the value of K3 for reaction 3 at the same temperature, use the expression as

"K3 ⇒ (- K) + (- K2)".

This is thus because the concentrations of the reactants and products in a reaction affect the equilibrium constant for that reaction. Since reaction 3 is the result of the combination of reactions 1 and 2, it is possible to compute reaction 3's equilibrium constant by multiplying reactions 1 and 2's equilibrium constant. In the instance of this issue, it is clear that the results of reaction 1 and reaction 2 both serve as the reactants for reaction 3 and its products, respectively. The equilibrium constant of reaction 3 at the same temperature as reactions 1 and 2 is therefore

K3 ⇒ K1 x K2.

It's vital to remember that the temperature might have an impact on the relationship between the equilibrium constants of a reaction, making it not always possible to combine reactions to produce a new equilibrium constant.

To know more about reaction please refer: https://brainly.com/question/28984750

#SPJ4

Calculate the molar mass of each compound given below. Keep at least one decimal place in atomic masses from the periodic table. A chemist requires 0.448 mol Na2CO3 for a reaction. How many grams does this correspond to? A sample of C3H6 has 2.40 times 1074 H atoms. How many carbon atoms does the sample contain? What is the total mass of the sample? The 64.8-g sample of the compound X2Os contains 48.0 g of oxygen atoms. What is the molar mass of element X?

Answers

47.264grams of 0.448 mol Na2CO3 is used for a reaction, the number of carbon atoms the sample contains is  1288.8and  the molar mass of element X is 14g/mol.

(a) Number of moles of Na2CO3 (M) = 0.448

Molar mass of Na2CO3 (W) = 2 x 22.9 + 1 x 12.0 + 3 x 15.9 = 105.5g

The mass of Na2CO3 required for the reaction = m

m = Molar mass x moles = 105.5x0.448 = 47.264g

The mass of Na2CO3 required = 47.264g

(b) Given sample = C3H6

number of atoms of hydrogen = 2.4 x 1074 = 2577.6

For every 6 hydrogens in propene there are 3 carbons present.

If there are 2.4 x 1074 Hydrogen atoms present then there are 3/6 x 2.4 x 1074  carbon atoms present.

Number of carbon atoms = 1288.8 atoms

(c) The compound = X2O5

The mass of compound (m) = 64.8g

The mass of oxygen atoms(m1) = 48g

Number of moles of oxygen = 48/16 = 3 where molar mass is 16g/mol

the number of moles of the given element X = x

From the equation 5 atoms of oxygen is 3 mol and 2 atoms of element X is n then 5 : 3 = 2 : x then the number of moles of X = 1.2

The mass of element X = 64.8 - 48 = 16.8g

The molar mass of X = 16.8/1.2 = 14g/mol

To learn more about carbon click here https://brainly.com/question/22530423

#SPJ4

which statement correctly describes archaeal cell walls? multiple choice many have peptidoglycan. some have an outer layer of protein. some have an outer layer of complex polysaccharide and some have an outer layer of protein. some have an outer layer of complex polysaccharide.

Answers

Some have an outer layer of complex polysaccharide and some have an outer layer of protein.

What is meant by polysaccharide?

Important classes of biomolecules include polysaccharides. They are lengthy chains of monosaccharide molecules that make up carbohydrates. These intricate biomacromolecules serve as a crucial energy source for animal cells and as a structural element of plant cells.The polysaccharides starch, cellulose, and glycogen are a few examples of.Polysaccharides are used as stabilisers and dietary fibre in the food industry.Polysaccharides can also be produced by bacteria, for instance while making yoghurt.a big molecule of a carbohydrate. It has several tiny sugar molecules that are chemically bonded together. also known as glycan.Our diet includes a lot of sugar, a disaccharide and isomer of lactose and maltose.

To learn more about polysaccharide refer to

https://brainly.com/question/14918481

#SPJ4

A liquid in a lab has a density of 1.17 g/cm^3. What is the volume in liters of 3.02 kg of the liquid?

Answers

A liquid's density is a measure of how heavy it is in relation to its measured volume.

Liquid density = 1.17 g / cm^3.

Mass of Liquid = 3.02 kg

1 kg = 1000 g

So, 3.02 kg = 3020.0 g

Using the formula

density of liquid = (mass of liquid) / (volume of the liquid)

By modifying above formula, which gives

volume of the liquid = (mass of liquid) / (density of liquid)

Now, put a value in an expression

Which gives, volume of the liquid = (3020.0 g) / (1.17 g / cm^3)

          = 2581.197 cm^3

As, 1 cm^3 = 0.001 L

Therefore, 2581.197 cm^3 = 2.581197 L

Therefore, the liquid volume is 2.581197 L.

Learn more about the density here:

https://brainly.com/question/17780219

To find the volume of the liquid in liters, we can use the formula of density the volume of 3.02 kg of the liquid is approximately 2.58 liters.

Given to us is

Mass = 3.02 kg

Density = 1.17 g/cm³

The formula is:

Volume = Mass / Density

First, we need to convert the mass to grams:

3.02 kg = 3,020 g

Next, we can substitute the values into the formula:

Volume = 3,020 g / 1.17 g/cm³

To convert the volume from cubic centimeters (cm³) to liters (L), we need to divide by 1000 (since 1 L = 1000 cm³):

Volume = (3,020 g / 1.17 g/cm³) / 1000

Calculating this expression, we find:

Volume ≈ 2.58 L

Therefore, the volume of 3.02 kg of the liquid is approximately 2.58 liters.

Learn more about density here:

https://brainly.com/question/29775886

#SPJ 4

How much will the temperature a 60 g sample of iron (specific heat = 0.214 cal/g/*C) change if 2000 calories are added to it?

Answers

Answer:

37.36 degrees Celsius

Explanation:

The temperature change of a substance can be calculated using the formula:

ΔT = Q / (m * Cp)

Where:

ΔT is the change in temperature (in degrees Celsius)

Q is the heat added or removed (in calories)

m is the mass of the substance (in grams)

Cp is the specific heat capacity of the substance (in calories per gram per degree Celsius)

For a 60g sample of iron with a specific heat of 0.214 cal/g*C and 2000 calories added to it, the temperature change would be:

ΔT = 2000 / (60 * 0.214) = 37.36 degrees Celsius

2. Explain the differences you observed when you added drops of acid or base to the water versus when the drops were added to the phosphate buffer. Explain why this difference occurs.

Answers

When the drops of acid or base were added to the water versus when the drops were added to the phosphate buffer, the pH changed considerably unlike in the phosphate buffer.

This is because the buffer neutralizes the drops of acid or base added to it.

What is a buffer solution?

A buffer solution is an acidic or basic aqueous solution made up of a mixture of a weak acid and either its conjugate base or base and its conjugate acid. A little bit of a strong acid or base applied to it barely affects its pH.

Hence, when drops of acid or base are added to a buffer such as a phosphate buffer, there is no observable change in the pH of the buffer solution. However, a considerable change in pH occurs when drops of an acid or base are added to water.

Learn more about buffer solutions at: https://brainly.com/question/13539106

#SPJ1

calculate the percent by mass composition of c (carbon) in the compound ch4 (round your answer to 3 significant figures at the end.) g

Answers

The percent by mass composition of c (carbon) in the compound ch4 is 10%.

How much carbon is there in CH4 by mass?

As an example, let's look at methane, or CH4. Methane's formula weight is [12.01 + (4 x 1.008)] = 16.04 (grams per cubic meter). Methane has a mass that is made up of (12.01/16.04) x 100 = 74.87% carbon and (4.032/16.04) x 100 = 25.13% hydrogen.

Sulfuric acid's percentage makeup of each element: Hydrogen% is equal to (2.016/98.07) x 100, or 2.0556%. Sulfur% = 32.06 98.07 100 = 32.69% Oxygen% = (63.996/98.07) 100 = 65.25%.

(1) CO = 80% CH, equals 20%; (2) CO = 90% CH4 = 10%.

Confirm that about 82.6% of C4H10's mass is made up of carbon. The molar masses of hydrogen and carbon on the periodic table are, respectively, 12.0 and 1.01.          

To learn more about percent by mass refer to:

https://brainly.com/question/26150306

#SPJ4

HELP PLEASE w/ all questions

Answers

Answer:

Explanation: 4P+5O2-----2P2O5

Propose structures for hydrocarbons that give the following products on oxidative cleavage by KMnO4 or O3 :

Answers

The non - terminal alkynes gives the carboxylic acid on the oxidative cleavage by the KMnO₄ or O₃.

The non - terminal alkynes have the triple bond in any positions other than the end position. The non - terminal alkynes gives carboxylic acid on the oxidative cleavage by the KMnO₄ or O₃. The oxidative cleavage is the reaction in which carbon - carbon bond cleaved with the oxidation of the carbons. The ozonolysis is the method of the oxidative cleavage of the alkynes and the alkene.

The alkyne ozonolysis is the example of an oxidative ozonolysis. The O₃ is the reactive allotrope of oxygen.

To learn more about oxidative cleavage here

https://brainly.com/question/30214476

#SPJ4

Write the expression for Kc for the following reactions. In each case indicate whether the reaction is homogeneous or heterogeneous.Part A3NO(g)⇌N2O(g)+NO2(g)Kc=[N2O][NO2]3[NO][NO]3[N2O][NO2]3[NO][N2O][NO2][N2O][NO2][NO]3SubmitMy AnswersGive UpPart B3NO(g)⇌N2O(g)+NO2(g)reaction ishomogeneousheterogeneousSubmitMy AnswersGive UpPart CCH4(g)+2H2S(g)⇌CS2(g)+4H2(g)Kc=[CH4][H2S]2[CS2][H2]4[CH4][H2S]2[CS2][H2]2[CS2][H2][CH4][H2S][CS2][H2]4[CH4][H2S]2SubmitMy AnswersGive UpPart DCH4(g)+2H2S(g)⇌CS2(g)+4H2(g)reaction ishomogeneousheterogeneous

Answers

All the given reactions are heterogeneous reactions.

How to determine whether the reaction is homogeneous or heterogeneous?

A reaction is classified as homogeneous or heterogeneous based on the phases of the reactants and products involved. A homogeneous reaction is one that occurs in a single phase, while a heterogeneous reaction is one that occurs across different phases. For example, if a reaction involves a solid, liquid, and gas, then it would be considered heterogeneous.

Part A: 3NO(g)⇌N2O(g)+NO2(g)

Kc = [N2O][NO2]^3 / [NO]^3

This reaction is heterogeneous because it involves a change in the number of moles of gas on both sides of the equation.

Part B: 3NO(g)⇌N2O(g)+NO2(g)

reaction is heterogeneous

Part C: CH4(g)+2H2S(g)⇌CS2(g)+4H2(g)

Kc = [CS2][H2]^4 / [CH4][H2S]^2

This reaction is heterogeneous because it involves a change in the number of moles of gas on both sides of the equation.

Part D: CH4(g)+2H2S(g)⇌CS2(g)+4H2(g)

The reaction is heterogeneous.

To learn more about chemical reactions refer:

brainly.com/question/11231920

#SPJ4

which of the following has the greatest electronegativity difference between the bonded atoms? which of the following has the greatest electronegativity difference between the bonded atoms? f2 hcl co kbr

Answers

Cesium fluoride has the largest electronegativity difference of all of these diatomic compounds, with a difference of 3.19. It is important to note that because oxygen gas is a diatomic.

molecule composed of two atoms of the same element, there is no difference in electronegativity between its atoms. It has an EN of zero.Caesium fluoride may be made by reacting caesium hydroxide (CsOH) with hydrofluoric acid (HF), and the resultant salt can be refined by recrystallization. The following is the reaction: CsOH + HF CsF + H2O CsOH + HF CsF + H2O Another method for producing caesium fluoride is to react caesium carbonate (Cs2CO3) with hydrofluoric acid, and the resultant salt may then be refined by recrystallization. The following is the reaction: 2 HF + 2 CsF + H2O + CO2 = Cs2CO3 In organic solvents, CsF is more soluble than sodium fluoride or potassium fluoride. It is accessible in anhydrous form, and if water has been absorbed, it is simple to dry in vacuo by heating at 100 °C for two hours. [6] CsF has a vapor pressure of one.

learn more about Caesium fluoride  here:

https://brainly.com/question/29355012

#SPJ4

How many of the following molecules are polar?

CH4, N2, NBr3, PCl5, CH3Cl

Answers

The molecules that are polar among the given options are as follows:

NBr₃

CH₃Cl

What are polar molecules?

Polar molecules are formed when one end of the molecule is said to possess more positive charges and whereas the opposite end of the molecule has negative charges, creating an electrical pole.

In polar molecules, the distribution of electrons between the covalently bonded atoms is not even.

The N–Br bond in NBr₃ is polar because the electrons that are shared between the two atoms are concentrated in the Br atom.

CH₃Cl is polar because the C-Cl bond is polar, the CH₃Cl has a net dipole, so CH₃Cl is polar.

PCl₅, CH₄, N₂ are said to be non polar because, as a bond is formed between the two atoms, there is no difference in their electronegativity and the net dipole moment becomes zero.

Learn more about polarity at: https://brainly.com/question/3184550

#SPJ1

based on the reading and your knowledge of environmental science, suggest a reason why nitrogen is typically present in the largest quantity in inorganic fertilizer.

Answers

One reason why nitrogen is typically present in the largest quantity in inorganic fertilizer is because it is an essential nutrient for plant growth.

What are fertilizers?

Fertilizer is a substance added to soil to provide plants with essential nutrients such as nitrogen, phosphorus, and potassium. The primary purpose of fertilizer is to increase crop yields and improve the overall health of plants. Fertilizers can be organic or inorganic.

Nitrogen is a key component of chlorophyll, the molecule in plants that allows them to absorb light and use it to photosynthesize. Without sufficient nitrogen, plants cannot produce enough chlorophyll and will not grow well. Nitrogen is also necessary for the production of amino acids, which are the building blocks of proteins, and for the synthesis of nucleic acids, which are necessary for cell growth and replication.

Another reason is that Nitrogen is abundant in the atmosphere, comprising 78% of it, and is relatively easy to convert to a form that can be used by plants. Nitrogen can be converted to ammonia, which is a common ingredient in inorganic fertilizers, through the Haber-Bosch process, which uses high temperatures and pressures to combine nitrogen and hydrogen.

Additionally, Nitrogen is relatively cheap and easy to produce, making it a cost-effective choice for fertilizer manufacturers.

In summary, Nitrogen is an essential element for plant growth, abundant and relatively easy to convert to a form that can be used by plants and cost-effective, that's why it is present in the largest quantity in inorganic fertilizers.

To learn more about fertilizers from the given link:

https://brainly.com/question/22283073

#SPJ4

which of the following is not one of the major minerals? group of answer choices copper magnesium chloride calcium

Answers

The choices copper magnesium chloride calcium is cellular repair.

What is magnesium chloride?a two-chloride ion and one magnesium-based inorganic molecule. The substance is utilized in medicine as a source of magnesium ions, which are necessary for numerous biological processes. The family of inorganic compounds known as magnesium chlorides has the formula MgCl2, where x can be any value between 0 and 12. These salts are colorless or white solids that are very soluble in water. These substances, both in their compounds and in their solutions, are found in nature and have a wide range of useful applications. Magnesium chloride is an over-the-counter drug used to prevent and treat low levels of magnesium in the blood. Magnesium is necessary for the healthy operation of the heart, muscles, bones, and neurons.

To learn more about  magnesium chloride refer to:

https://brainly.com/question/28295856

#SPJ4

during neuronal signaling, a change in membrane potential will cause sodium channels to open and let Na+ ions diffuse down their concentration gradient into the cell. which of the following helps establish the concentration gradient necessary for this process to occur?

Answers

The one which helps to  establish the concentration gradient necessary for this process to occur is the Na⁺/K⁺ pump.

During neuronal signaling, a change in the membrane potential will cause the  sodium channels to open and let the Na⁺ ions diffuse down the concentration gradient into the cell. The sodium - potassium pump is an enzyme. The sodium - potassium pump helps to maintain the osmotic equilibrium and the potential in the cells.

Thus, the Na⁺/K⁺ pump helps to  establish the concentration gradient necessary for this process to occur.

To learn more about concentration gradient here

https://brainly.com/question/13978288

#SPJ4

elect the incorrect statements(s).
1. Although ice, water and water vapour all look different and display different physical properties, they are
chemically the same.
2. During burning of a candle, both physical and chemical changes take place.
3. Both water and cooking oil are liquid but their chemical characteristics are different. They differ in odour
and inflammability.
4. It is the physical property of oil that makes it different from water.
(a) 1 and 2 (b) 2 and 3
(c) 1, 2 and 3 (d) Only 4

Answers

The incorrect statements are option (a) 1 and 2 :

1. Although ice, water and water vapor all look different and display different physical properties, they are chemically the same.

2. During burning of a candle, both physical and chemical changes take place.

What is physical properties?

Although ice, water and water vapor all look different and display different physical properties, they are chemically the same. This statement is incorrect. Ice, water, and water vapor are all forms of water, but they are not chemically the same. They have different physical properties such as state, shape, and temperature.

Therefore, During burning of a candle, both physical and chemical changes take place. This statement is incorrect. Burning of a candle is a chemical change, where the wax is broken down into smaller molecules and is converted into carbon dioxide, water vapor and other gases.

Learn more about physical properties from

https://brainly.com/question/12330204

#SPJ1

What type of solid will each of the following substances form in its solid state? Choices to considerare metallic, ionic, covalent, or molecular solids. a. CyH6 d. Co,-molecular g. AI b. Nazo e. N:Os h. C(diamond) c. sio, - Covalent f. NaNO3 i. SO

Answers

a. CyH6 - Molecular solid, b. Na - Ionic solid, c. SiO2 - Covalent solid, d. Co - Metallic solid, e. N2O - Molecular solid, f. NaNO3 - Ionic solid, g. Al - Metallic solid, h. C(diamond) - Covalent solid, i. SO2 - Molecular solid

CyH6, N2O, and SO2 are molecular solids, as these compounds are composed of individual molecules that are held together by weak intermolecular forces. Na is an ionic solid, as it is composed of positively charged sodium ions and negatively charged chloride ions held together by strong electrostatic forces. SiO2 is a covalent solid, as it is composed of individual Si-O covalent bonds.Co is a metallic solid, as it is composed of a metallic lattice of metal atoms held together by metallic bonds. NaNO3 is an ionic solid, as it is composed of positively charged sodium ions and negatively charged nitrate ions held together by strong electrostatic forces.

learn more about molecular solids here:

https://brainly.com/question/12866243

#SPJ4

choose the k sp expressions for the following reactions. ca 3 (po 4 ) 2 (s) 3ca 2 (aq) 2po 4-3 (aq) k sp

Answers

The k sp expressions for the reactions is Ks is [Ca2+]3 and [PO4 3+]2.Ks (solubility product) is the result of multiplying the calcium ion concentration by the phosphate ion concentration.

Discover Ks (solubility product)?

Ks (solubility product) is the result of multiplying the calcium ion concentration by the phosphate ion concentration. When salt is introduced to water, it dissolves and the molecules split apart into ions. The following equation can be used to express it:

Ca3(PO4)2(s) <—> 2PO4 3+ with 3Ca2+ (aq)

The molecule's state is indicated by the letters s and aq. S stands for solid, and AQ for aqueous.

K = [D]d. [C]c/ [A]a. [B]b is the formula used to represent this constant in chemical equilibrium.

One further thing to keep in mind is that the constant only accounts for gases and aqueous molecules; solids and liquids have no bearing on it. In the equation, values are replaced by 1, and the constant is not affected by solids or liquids.

Since Ca3(PO4)2 is now solid, it has no effect on Ks; in this situation, the only relevant concentrations are those of Ca and PO4. This ions' expression of Ks is because they are products.

Ks=[Ca2+]3 and [PO4 3+]2.

To learn more about  k sp expressions refer to:

https://brainly.com/question/28790035

#SPJ4

Give two examples of elements for each of the following categories.a. noble gasesb. halogensc. alkali metalsd. alkaline earth metals

Answers

The two examples of each is given as :

1) Noble gases =  He , Ne

2) Halogens = F, Cl

3) Alkali metals = Li, Na

4) Alkaline earth metals = Be, Mg

1) The noble gases are the elements in the periodic table belongs to the 18 group : He, Ne, Ar, Kr, Xe, Rn, Og.

2) The halogens are the elements in the periodic table belongs to the group 17 : F, Cl, Br, I, At.

3) The alkali metals are the elements in the periodic table belongs to the group 1st : H, LI, Na, K, Rb, Cs, Fr.

4) The alkaline earth metals  are the elements in the periodic table belongs to the group 2nd : Be, Mg, Ca, Sr, Ba, Ra.

To learn more metals here

https://brainly.com/question/12752808

#SPJ4

For each of the following unbalanced reactions, suppose exactly 5.00 moles of each reactant are taken. Determine which reactant is limiting, and also determine what mass of the excess reagent will remain after the limiting reactant is consumed. For each reaction, solve the problem three ways: i. Set up and use Before Change-After (BCA) tables. ii. Compare the moles of reactants to see which runs out first. iii. Consider the amounts of products that can be formed by completely consuming each reactant a. Cacz(s) + H2O(l) + Ca(OH),(8) + CH2(9) b. AgNO3(aq) + Al(s) + Ag(s) + Al(NO3)2 (aq)

Answers

A balanced chemical equation gives the relationship between the number of moles of reactants and the number of moles of products. This is called reaction stoichiometry.

what is meant by stoichiometry?

Chemical The quantitative analysis of the reactants and products involved in a chemical process is known as stoichiometry. Stoichiometry is a combination of the Greek words "stoikhein," which means element, and "metron," which means measure.

One of the most crucial topics in general chemistry is stoichiometry. Normally, it comes up after talking about unit conversions and atom components. Although it's not tough, the word's convoluted sound turns away many students. It may be described as "mass relations" for this reason. It alludes to masses of reactants, products, and the constituents that make up a complex.

solving stoichiometry issues

equations that balance

Conversion of grams to moles

determining molar mass

mole ratio calculations

To know more about stoichiometry refer to:

https://brainly.com/question/14935523

#SPJ4

identify the two compounds that have the longest atmospheric lifetime in years. give their lifetime in years. True Or False

Answers

Inter-molecular interactions between gas particles have a stronger influence on the properties as pressure rises.

Fluoridated gases have the longest atmospheric lifetime. In a gas, the particles are dispersed. They resemble a "ideal gas," where there is little particle interaction and collisions are completely elastic, under normal pressure and at low temperatures. Inter-molecular interactions between gas particles have a stronger influence on the properties as pressure rises. Because of the space between atoms or molecules, the majority of gases are transparent.  Like fluorine and chlorine, some of them have almost no color. Gases usually exhibit weaker responses to electric and gravitational fields than other forms of matter. Gases are less dense and more viscous than liquids and solids.

Learn more about Fluoridated gases here:

https://brainly.com/question/29666148

#SPJ4

a gas is compressed from a volume of 5.42 l to a volume of 2.75 l by an external pressure of 748 torr. which of the following correctly reflect the calculations required to determine the work done on/by the system (the gas)?

Answers

Reflect the calculations required to determine the work done on/by the system 1 atm⋅L = 101.3 J and 1 atm = 760 torr

ΔV = -2.67 L

w = 266 J

What is meant by calculations ?

The method of estimating a number or amount by using information you currently have and adding, subtracting, multiplying, or dividing numbers:A few mistakes were present in the computations that you performed or made.I worked on that equation for hours, yet I still got the erroneous answer.An intentional mathematical process known as a computation converts one or more inputs into one or more outputs or results.The term is used in many different contexts, ranging from the precise mathematical calculation of employing an algorithm to the nebulous heuristics of calculating a strategy in a competition or calculating the likelihood of a successful relationship between two individuals.

To learn more about calculations refer to

https://brainly.com/question/26046491

#SPJ4

Sucrose (C12H22O11) reacts with potassium chlorate according to the following balanced equation:
C12H22O11 (s) + 8 KClO3 (s)  12 CO2 (g) + 11 H2O (g) + 8 KCl (s)

Suppose 3.5 moles of C12H22O11 are mixed with 21.0 moles of KClO3. Identify the limiting reactant, then
calculate how many moles of each product (CO2, H2O and KCl) will be formed in this reaction.

Answers

Taking into account definition of the reaction stoichiometry, potassium chlorate is the limiting reactant and 31.5 moles of CO₂, 28.875 moles of H₂O and 21 moles of KCl are formed when 3.5 moles of C₁₂H₂₂O₁₁ are mixed with 21.0 moles of KClO₃.

Reaction stoichiometry

In first place, the balanced reaction is:

C₁₂H₂₂O₁₁ (s) + 8 KClO₃ (s) → 12 CO₂ (g) + 11 H₂O (g) + 8 KCl (s)

By reaction stoichiometry, the following amounts of moles of each compound participate in the reaction:

C₁₂H₂₂O₁₁= 1 molesKClO₃= 8 molesCO₂= 12 molesH₂O= 11 molesKCl= 8 moles

What is limiting reagent

The limiting reagent is one that is consumed first in its entirety, determining the amount of product in the reaction.

Limiting reagent in this case

To determine the limiting reagent, the following rule of three can be applied: if by stoichiometry 1 mole of C₁₂H₂₂O₁₁ reacts with 8 moles of KClO₃, 3.5 moles of C₁₂H₂₂O₁₁ reacts with how many moles of KClO₃?

moles of KClO₃= (8 moles of KClO₃×3.5 moles of C₁₂H₂₂O₁₁)÷1 mole of C₁₂H₂₂O₁₁

moles of KClO₃= 28 moles

But 28 moles of KClO₃ are not available, 21 moles are available. Since you have less moles than you need to react with 3.5 moles of C₁₂H₂₂O₁₁, KClO₃ will be the limiting reagent.

Moles of each product formed

Considering the lomiting reactant, he following rules of three can be applied:

if by reaction stoichiometry 8 mole of KClO₃ form 12 moles of CO₂, 21 moles of KClO₃ form how many moles of CO₂?

moles of CO₂= (21 moles of KClO₃×12 moles of CO₂)÷8 mole of KClO₃

moles of CO₂= 31.5 moles

if by reaction stoichiometry 8 mole of KClO₃ form 11 moles of H₂O, 21 moles of KClO₃ form how many moles of H₂O?

moles of H₂O= (21 moles of KClO₃×11 moles of H₂O)÷8 mole of KClO₃

moles of H₂O= 28.875 moles

if by reaction stoichiometry 8 mole of KClO₃ form 8 moles of KCl, 21 moles of KClO₃ form how many moles of KCl?

moles of KCl= (21 moles of KClO₃×8 moles of KCl)÷8 mole of KClO₃

moles of KCl= 21 moles

Finally, 31.5 moles of CO₂, 28.875 moles of H₂O and 21 moles of KCl are formed.

Learn more about the reaction stoichiometry:

brainly.com/question/24741074

#SPJ1

Other Questions
Explain why tudent need to have an undertanding of variou entence type AND why they need to utilize a variety of entence type within a piece of writing Need help before the deadline tonight A stratified random sample addresses the same issues as which of the following experimental designs?A. A block design.B. A double-blind experiment.C. An experiment with a placebo.D. A matched pairs design.E. A confounded, nonrandomized study. congratulations! you were accepted at four colleges and now must decide which to attend. each school is located in a different part of the country, has different tuition costs, and offers some degrees that are unavailable at the other schools. your decision about which school to choose is a: People thought the (Choose) of a building was an eyesore on the horizon and should be torn down.A. bisectB. duplicateC. monolithD. unilateral What is the inverse of 8?. Question 1 of 10In the House of Representatives, what is the next step in the legislativeprocess immediately after the floor debate takes place?A. The Committee of the Whole debates and revises the proposedbill.B. The Rules Committee explains the procedures for voting on theproposed bill.C. All present members of the House vote on the proposed bill.D. The president chooses whether to veto the proposed bill. estimates of the cost, salvage value, and useful life of a plant asset are used to calculate its annual depreciation. a nurse is interviewing a client who uses an expression with which the nurse is unfamiliar. what is the most appropriate phrase for the nurse to use to clarify the expression's meaning from the client? a 6-month-old infant, who was born 8 weeks premature, is seen in the clinic for a well-child visit. which statement by the parent is evidence further education is needed? What is the role of the mucus and and cilia in the respiratory system *?. why do businesses want customers to demonstrate brand insistence for them? What words describe a dream?. Does the Bill of Rights protect everyone?. a female client has a 12-year history of etoh abuse. the client is injured in a motor vehicle accident and requires surgery with general anesthesia. what would the nurse expect for this client? Where do we use range () function give an example?. businesses that send catalogs and direct mail advertising often buy information about consumers that is collected in an electronic ____ that tells them that customers buy and from whom they buy merchandise When a company sells phones bundled with a one-year service contract, then the portion of revenue allocated to the one-year service is recognized ______.A. At the time the phone is deliveredB. Six months after the phone is deliveredC. The day after the service contract expiresD. Over time as the service is provided What could the quilts symbolize?. what land did president polk want before the war started?