What mass of nh3 must be dissolved in 475 g of methanol to make a 0. 250 mol kg-1 solution?.

Answers

Answer 1

2.02 g of ammonia are required to dissolve 1 g of methanol.

The parameters are as follows: • mass of methanol, 475 g

A compound's chemical composition is symbolically represented by its chemical formula. Chemical formulas reveal the elements that make up a compound's molecules as well as the ratio in which their atoms combine to create those molecules.

• The solution's concentration is equal to 0.25 m

The following formula is used to determine each compound's molar mass:

CH2OH (12) + (3 x 1) + (16) + (1) = 32 g/mol = NH3 = (14) + (3 x 1) = 17 g/mol

The following formula is used to determine the ammonia's molecular weight:

methanol mole equals 0.25 moles of NH3, which is equal to 0.25 x 0.475 moles of NH3, or 0.11875 moles.

The ammonia's mass is determined using the formulas below;

mass of ammonia = 2.02 g mass of ammonia = 0.11875 x 17 g

Therefore, 2.02 g of ammonia are required to dissolve 1 g of methanol.

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Related Questions

Find the molecular formula for a compound made up of 85.6 % carbon and 14.4%
hydrogen by mass that has a molar mass of 70.15 g/mol.

Answers

85.7 g of such carbon dioxide and 14.3 g of hydrogen are found in 100 g of the molecule. C and H have atomic weights of 12g and 1g, respectively. As a result, the compound's chemical formula is C3H6. It is an alkene with a double bond by the name of propene.

What does molecular formula mean?

The chemical formula is an equation that specifies how many atoms of the each element there are in a single compound's molecule. It displays the precise amount of atoms present in a molecule. Propane, for instance, has the chemical formula C4H10. The given compound has a formula of 4 carbon elements and 10 h atoms.

A molecular formula Why is it?

In a molecular formula, each sort of atom's number and composition are specified. A molecule contains atoms. No prefix is used if there is just one element of a certain kind. A subscript is added to the symbol for an atom if it contains four or more of the certain type of atom.

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The denity of copper (Cu) i 8. 96 g/cm3 at 25°C. What i the ma of a piece of copper that occupie 26. 7 cm3 at thi temperature?

Answers

The mass of the piece of copper is  239.9 g

The density of a substance is a measure of its mass per unit volume. In the case of copper, its density is 8.96 g/cm3 at 25°C. This means that 1 cm3 of copper weighs 8.96 grams at 25°C.

To determine the mass of a piece of copper that occupies a certain volume, we can use the formula: mass = density x volume

In this case, the volume of the piece of copper is 26.7 cm3 and the density is 8.96 g/cm3. So we can plug these values into the formula:

mass = 8.96 g/cm3 x 26.7 cm3

By multiplying the density by the volume, we find that the mass of the piece of copper is 239.9 grams.

The final answer is 239.9 g.

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give atleast 2 importance of ecological relationship in the enviroment

Answers

Explanation:

Competition and predation are ecological relationships but are not symbiotic. Predation does not occur over a long period of time, and competition is an indirect interaction over resources.

Competition is most typically considered the interaction of individuals that vie for a common resource that is in limited supply, but more generally can be defined as the direct or indirect interaction of organisms that leads to a change in fitness when the organisms share the same resource.

In predation, one organism kills and consumes another. Predation provides energy to prolong the life and promote the reproduction of the organism that does the killing, the predator, to the detriment of the organism being consumed, the prey. Predation influences organisms at two ecological levels.

how do calculated frequencies compared to the frequency settings

Answers

Answer:

Calculated frequencies refer to the frequencies that are determined or calculated through various methods, such as measuring or analyzing signals or data. Frequency settings, on the other hand, refer to the specific frequencies that are programmed or set on a device or system. The relationship between calculated frequencies and frequency settings depends on the context in which they are being used. In some cases, calculated frequencies may be used to adjust or optimize frequency settings, while in other cases, frequency settings may be used to generate or analyze calculated frequencies.

The statement below is false. How
must it change to correct it?
"The gas particles have a large volume
and weak attraction for one another.

A. The gas particles have strong
attraction for one another.
B. The gas particles have almost no
volume.
C. The gas particles have small volume
and strong attraction for one another.

Answers

Answer:

A. The gas particles have strong attraction for one another.

Explanation:

The gas particles have a large volume and weak attraction for one another. To correct this statement and make it true, it should be: "The gas particles have a small volume and weak attraction for one another." Gases have large volume, and low density and the particles in a gas are far apart from one another and have very weak attractive forces between them.

Answer: B. The gas particles have almost no

volume.

Explanation:

How do I balance this?

Answers

C12H22O11 (s) + 12O2 (g) ⇒ 12CO2 (g) + 11H2O (g)

Reviewing Vocabulary

Answers

Answer:

Plasma - state of matter consisting of freely moving icons and electrons

Differentiate - to distinguish between two or more objects

Ion - atom or molecule with a net electric charge

Primary - most important; fundamental

oxides of active metals, such as cao, react with water to form____

Answers

The oxides of active metals react with water to form metal hydroxides.

An active metal reacting with water produces a base. The first group of elements in the reactivity series is the most reactive metals. When they react with water, the plus charge on the metal is canceled by the negative charge of the hydroxide ion. Hence, there is a formation of the basic oxide.

Compounds such as calcium oxide (CaO) reacts with water to form calcium hydroxide. It is commonly known as slaked lime which is the end product of this process.

This is a type of combination reaction. Combination reactions are the types of reactions in which two reactants combine to form a new product and also release heat energy during the reaction.

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Which of the following involves reduction:
A.Conversion of anion to atom
B.Conversion of cation to atom
C.Both of these
D.None of these

Answers

Answer:

B.Conversion of cation to atom

Explanation:

Reduction involves the gaining of electrons. Since a cation is positively charged and has lost electrons, for it to become an atom and be neutral it would have to gain electrons that were previously lost before, hence the answer is B.

It cannot be A because an anion is negatively charged and has gained electrons. For the conversion of the anion to become an atom it would have to lose electrons to become neutral as before it has gained electrons, so oxidation (which is the loss of electrons) would occur.

Which substance below has the strongest intermolecular forces?

Propane, CH3CH2CH3, MW = 44 g/mol

O Methanethiol, CH3SH, MW = 48 g/mol

Ethanamine, CH3CH2NH2, MW = 45 g/mol

Methyl phosphine, CH3PH3, MW = 48 g/mol

Answers

Methyl phosphine (CH3PH3) has the strongest intermolecular forces among the given compounds.

The strength of intermolecular forces is determined by the type of bond present in a substance. Methyl phosphine has dipole-dipole interactions, which are stronger than the London dispersion forces present in the other compounds. This is the main reason for this compound having the strongest intermolecular forces.

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the three different gas-law processes described in this video are___

Answers

The three different gas-law processes described in this video are constant volume, constant pressure, and constant temperature.

Constant volume, constant pressure, and constant temperature, these are also known as isochoric, isobaric, and isothermal processes respectively. In an isochoric process, the volume is held constant, meaning that the pressure and temperature of the gas will change. In an isobaric process, the pressure is held constant, meaning that the volume and temperature of the gas will change. In an isothermal process, the temperature is held constant, meaning that the volume and pressure of the gas will change. Each of these processes is related to a specific gas law and can be used to understand and predict the behavior of gases under different conditions.

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If chemicals are transferred to secondary containers the secondary containers must be labeled with.

Answers

The secondary container must be marked with the name of the chemical and any hazards it may provide when a substance containing a hazardous chemical is moved from the primary container to the secondary container.

Define a secondary label.

The product's components, nutritional values, health and safety warnings, use instructions, manufacturer or supplier data, contact information, or comprehensive tracking and product information in a barcode format are all included on a secondary label.

The identity of the hazardous chemical contained in the product and the dangers, whether physical, health-related, or environmental, that the components present must both be disclosed on the secondary labels.

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Balance the equation

____Sb + ____O2 ---> ____Sb4O6

Answers

Answer:

2Sb2O3 + 3O2 -> 2Sb4O6

The coefficients indicate the number of moles of each element that participate in the reaction. The coefficients are chosen so that the number of atoms of each element on both sides of the equation is equal.

nebula can form either an average star, or_______ ______________. that is about the size of our sun, or a ____________ star which can be over 3 times as big as our sun!

Answers

A nebula can form either an average star, or a massive star, that is about the size of our sun, or a supergiant star which can be over 3 times as big as our sun!

What do you mean by stars?

Stars are giant spheres of hot gas, primarily composed of hydrogen and helium, that generate energy through nuclear fusion reactions. They are found in vast numbers throughout the universe and are the building blocks of galaxies.

A star's energy is generated by nuclear fusion reactions that take place in its core. This energy is responsible for the star's brightness and for the formation of the various elements in the star.

Stars come in different sizes, colors, and temperatures. The size of a star is described by its mass and radius, the color of a star is determined by its temperature, with the hottest stars being blue and the coolest stars being red. The temperature of a star also determines its luminosity, that is, how bright it appears in the night sky.

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After decaying for 48 hours, of the original mass of a radioisotope sample remains unchanged. What is the half-life of this radioisotope?.

Answers

After decaying for 48 hours, of the original mass of a radioisotope sample remains unchanged. The half-life of this radioisotope is zero.

Describe a half-life.

The half-life is basically the amount of time it takes for one-half of a radioactive isotope to decay. The half-life of a single radioactive isotope is unaffected by environmental factors and is independent of the isotope's initial concentration.

Half-life is a unit of measurement for the exponential decay equation that remains constant over the lifespan of an exponentially decaying quantity. The half-life of a quantity is the time required for it to decrease to half of its initial value. The phrase is frequently used in nuclear physics to indicate how quickly unstable atoms decay radioactively or how long stable atoms last.

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what is the percent yield if 18 grams of water are produced when 4 grams of hydrogen with excess oxygen?

Answers

The 4% is the percent yield if 18 grams of water are produced when 4 grams of hydrogen with excess oxygen.

What is hydrogen ?

Protium, a proton and a neutron, is the common isotope of hydrogen (H), while Deuterium and tritium are the other two isotopes (a protron and two neutrons). Only hydrogen has had its isotopes given distinct names among all the elements. For fuel in nuclear fusion reactors, both deuterium and tritium are employed.

What is oxygen ?

It is ingested by animals, who then convert it to carbon dioxide, which is then used by plants to create new carbon and release oxygen back into the atmosphere.

2H2++O2------------->2H2O.

So 32g of Oxygen reacts with 4 g of Hydrogen.

Therefore 16 g of oxygen reacts with 2 g of Hydrogen and will form 18 g of water.

The remaining 2 g of Hydrogen will be left unreacted. So 18 g of water will be formed and 2 g of Hydrogen will be left unreacted.

Therefore, 4%  is the percent yield if 18 grams of water are produced when 4 grams of hydrogen with excess oxygen.

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Are magnesium and calcium more reactive with oxygen in the air than aluminum?

Answers

Answer:

Yes

Explanation:

In the activity or reactivity series of metals it turns out that calcium and magnesium are above aluminium

150g of 80% pure ZnCO3 is completely reacted with excess HCI to produce ZnCl2, CO₂, and H₂O.
i. Which one is limiting reactant?
ii. Calculate the mass of ZnCl₂ formed?
iii. How many molecules of water are produced?
iv. What volume of CO2 are produced if the reaction is carried out at 27°C and 760 mm of Hg pressure?​

Answers

The balanced chemical equation of the given statement is-

       Zn + 2HCl → ZnCl2 + H2

How to calculate balanced chemical equation?

Zn has a molar mass of 65.38 g mol 1.

HCl has a molar mass of 36.458 g mol-1.

Calculate the moles of each reactant:

  (1 mol Zn/ 65.38 g Zn)  (150 g Zn) = 2.2943 mol Zn

 (1 mol HCl/ 36.458 g HCl)  (73 g HCl) = 2.0023 mol HCl

Because there is an excess of zinc (Zn), hydrochloric acid (HCl) must be the cause.                                    

 restricting agent.

 Hydrochloric acid (HCl) is the limiting agent.

The mass in molars of    

136.3 g mol-1 is ZnCl2.

 Cu has a molar mass of 68g mol-1.

  Magnesium (Mg) being a limiting reagent results in:

  (10.00 g Mg) divided by (1 mol Mg / 24.305 g Mg), (1 mol Cu / 1 mol Mg), and (68 g Cu / 1 mol Cu) yields 28.15 g.

28.15 grams of formed ZnCl2.

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Blood alcohol content (bac) is sometimes reported in weight-volume percent and, when it is, a bac of 0. 10% corresponds to 0. 10 g of ethyl alcohol per 100 ml of blood. In many jurisdictions, a person is considered legally intoxicated if his or her bac is 0. 10%. Suppose that a 68 kg person has a total blood volume of 5. 4 l and breaks down ethyl alcohol at a rate of 10. 0 grams per hour. How many 145 ml glasses of wine, consumed over three hours, will produce a bac of 0. 10% in this 68 kg person? assume the wine has a density of 1. 01 g/ml and 11. 5% ethyl alcohol by mass.

Answers

2 , 145 ml glasses of wine, consumed over three hours, will produce a bac of 0. 10% in this 68 kg person.

What Is Blood Alcohol Concentration (BAC)?

The quantity of alcohol in a person's bloodstream is known as blood alcohol content, or BAC, and it can be determined 30 to 70 minutes after ingestion. Contrary to common opinion, coffee, cold showers, and downing glasses of water won't help you sober up any faster. The only thing that can lower BAC is time.

Given, 68kg person

5,4L blood  i.e. 5400ml

Breaks down ethyl alcohol at a rate of 10. 0 grams per hour

To produce a bac of 0. 10% in this 68 kg person over three hours,

(0.10g/100ml)*5400ml   +  (10g/h *3h)   i.e. 30.54g of ethyl alcohol

For  a 11,5% of wine ,

Where density of ethyl alcohol is 1.01g/mL:

30.54*(1/1.01)*(100/11.5) i.e. 262.909mL wine

Therefore, he need to consume:

262.909/145 i.e. 1.8 ≈ 2 glasses of wine

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How do you find the number of molecules?.

Answers

To find the number of molecules, first determine the molecular weight of the substance for one mole, then divide the molar mass value by the molecular mass, and multiply by the Avogadro constant.

The total atomic masses of an element's constituent elements make up its molecular mass. This value is also expressed in terms of atomic mass units.

to count the molecules that make up a substance.

By multiplying the number of moles by the Avogadro constant, one can get the total number of atoms or molecules in a sample. The following formula is used:

According to his law, which states that "equivalent volumes of different gases measured under the same conditions of temperature and pressure contain the same number of molecules," one mole of material has 6.022x10²³ atoms.

Once the substance's molecular weight for one mole has been determined, divide the molar mass value by the molecular mass to arrive at the necessary number of molecules the multiply it by the Avogadro constant.

To determine the quantity of sulphur (S₈) molecules present in a solid sulphur of present in 16 g of solid sulphur of 16 g.

1 mole of solid sulphur (S₈)=8×32 g=256

256 g of solid sulphur contains 6.022×10²³molecules.

Then, 16 g of solid sulphur contains =6.022×10²³ x16/256 molecules =3.76375×10²² molecules.

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A sample of chemical x is found to contain 5. 0 grams of oxygen, 10. 0 grams of carbon, and 20. 0 grams of nitrogen. The law of definite proportion would predict that a 70 gram sample of chemical x should contain how many grams of carbon?.

Answers

17 grams of carbon should be present in a 61-gram sample of chemical x.

The law of definite proportions, also known as Proust's law or the law of constant composition, is a principle in chemistry that asserts a chemical compound will always contain its constituent components in a fixed ratio (by mass), regardless of its source or method of creation.

According to the law of definite proportion, regardless of quantity or source, the proportions of each element to its weight in a chemical combination will always be exactly the same value.

In the ensuing query:

The chemical X sample includes:

Oxygen content: 5.0 grams

One kilogram of carbon

Nitrogen content: 20.0 grams

The compound's total mass is (10.0 + 5.0 + 20.0) g, which equals 35.0 g.

10/35 = 2/7 is the proportion of carbon in the compound.

As a result, the amount of carbon in 61 grammes of the sample is equal to 2/7 x 61, or 17.42 grams.

Therefore, we can infer that 17 grams of carbon should be present in a 61-gram sample of chemical x.

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The corrosion of aluminum is cook wares is prevented as the aluminum metal reacts with the oxygen in the air, producing a protective coat of aluminum oxide. How many moles of oxygen gas will react with aluminum?.

Answers

3.25 moles of aluminium oxide is produced from 3 x 3.25 moles of oxygen which is  9.75 moles of oxygen.

The balanced equation for the reaction is :

2 Al    +    3 O₂   =    Al₂O₃

1 mole of aluminum oxide is created from 3 moles of oxygen gas.

3 x 3.25 moles of oxygen, or 9.75 moles of oxygen, are used to create 3.25 moles of aluminum oxide.

mass equals molecular mass

= 32g of oxygen times 9.75

equals 312 g of oxygen.

The formula Mass= mole x molar mass will yield grams of aluminum oxide.

9.75 x 32g of oxygen

= 312 g of oxygen.

Aluminum oxide weighs 331.5 g.

Yield percentage when the actual yield is 228.4g

yield is calculated as 228.4 x 100 / 331.5.

= 68.89 %

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Complete Question -

The corrosion of aluminum in cookware is prevented as the aluminum metal reacts with oxygen gas in the air producing a protective coat of aluminum oxide. Aluminum) Al+3

(Oxygen) O-2

Al + O2 ------> Product(?

a) Write the balanced equation for the reaction.

b) How many grams of oxygen gas is used in the reaction if 3.25 moles of aluminum oxide is produced?

c) How many grams of aluminum oxide will be produced by the reaction

d) If the reaction gave an actual yield of 228.4 g, what is the percent yield for the reaction?

which product besides radiation do radioactive atoms give off when they decay?

Answers

When a radioactive atom decays, it emits energy in the form of radiation as well as charged matter particles. These particles may be alpha or beta in nature.

The nuclei of the atoms are unstable during radioactive decay, but when they emit radiation, they become more stable. It is a nuclear reaction rather than a chemical reaction because it only involves the nuclei of atoms. One element may change into another during a nuclear reaction.

There are three types of radioactive decay: alpha, beta, and gamma decay. Both alpha and beta decay alter the number of protons in an atom's nucleus, causing the atom to change elements.

The nucleus loses two protons during alpha decay. The nucleus either loses or gains a proton during beta decay. Because there is no change in proton number in gamma decay, the atom does not become a different element.

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Support or refute the following claim using at least two
pieces of evidence from the text:
Claim: Planets are made of the same elements as their
stars. Write a short answer.

Answers

Answer: The claim that planets are made of the same elements as their stars is not supported by evidence.

First, stars and planets are formed through different processes. Stars form through the collapse of clouds of gas and dust, while planets form from the accretion of material in a protoplanetary disk around a star.

Second, the composition of planets can be different from that of their star. For example, the composition of the Earth is primarily made of oxygen, silicon, aluminum, iron, calcium, sodium, and potassium. While these elements are also present in the Sun, they make up only a small fraction of its composition, which is primarily made of hydrogen and helium.

In summary, the claim that planets are made of the same elements as their stars is not supported by evidence and that the formation and composition of planets and stars are different.

Explanation:

The synthesis of complex molecules _______ energy, whereas their degradation _______ energy. the synthesis of complex molecules occurs with _______ in entropy.

Answers

The synthesis of complex molecules is endergonic energy, whereas their degradation is exergonic energy. The synthesis of complex molecules occurs with a decrease in entropy.

The production of complex molecules requires the input of energy, which is known as endergonic energy.

This energy fuels the process of creating the molecules and can be supplied by a variety of sources, such as chemical reactions or solar energy.

On the other hand, the degradation of complex molecules produces energy, known as exergonic energy. During the synthesis of complex molecules, entropy decreases as the molecules become more ordered and structured.

The creation of complex molecules requires energy, known as endergonic energy.

The energy to break down complex molecules, on the other hand, is released in the form of exergonic energy.

This is because the synthesis of complex molecules leads to a decrease in entropy.

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Assume that 41. 1g of hydrogen peroxide decompose to produce oxygen gas at STP to the following balanced equation:


2H2O2 (l) ---------> 2H2O(l) + O2 (g)


How many Liters of oxygen gas are produced?

Answers

At STP, 1 mole of any gas occupies a volume of 22.4 liters. In order to calculate the amount of oxygen gas produced in the reaction, we must first calculate the number of moles of hydrogen peroxide present in the reaction.

Since 1 mole of hydrogen peroxide has a mass of 34.02 g, we can calculate the number of moles as follows:

41.1/34.02 = 1.20 moles

Since the reaction produces 1 mole of oxygen for every 2 moles of hydrogen peroxide, the total number of moles of oxygen produced is 1.20/2 = 0.60 moles.

To calculate the volume of the oxygen gas produced, we multiply the number of moles of oxygen by 22.4 liters, which gives us 0.60 * 22.4 = 13.44 liters of oxygen gas produced.

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Which of the following statements is not an intensive
property?
A chemical reaction requires 10.00 g of carbon.
The density of water at 25°C is 1.00 g/mL..
Solid copper (II) sulfate pentahydrate is blue colored.
The boiling point of water is 373.15 K.

Answers

The intensive properties is ;

The density of water at 25°C is 1.00 g/mL..

What is an intensive property?

Intensive properties are properties of a substance that do not depend on the amount of the substance present, but only on its temperature, pressure, and other conditions.

We have to note that the density does not depend on the amount of the substance that is present then it follows that the density that we have is an intensive property.  It does not depend on the amount of the substances that we have here.

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Calculate the volume in mL of a 1.420 M NaOH solution required to titrate the following solutions:

(a) 25.00 mL of a 2.430 M HCI solution

(b) 25.00 mL of a 4.500 M H2SO4 solution

(c) 25.00 mL of a 1.500 M H3PO4 solution


Answers

=158.4ml

Explanation:

Solution:

Chemical\; reaction:Chemicalreaction:

H_2SO_4(aq)\;+\;2NaOH(aq)\implies Na_2SO_4(aq)\;+\;H_2O(l)H

2

SO

4

(aq)+2NaOH(aq)⟹Na

2

SO

4

(aq)+H

2

O(l)

1) By using the acid-base equation:

M_1V_1=M_2V_2M

1

V

1

=M

2

V

2

4.5M*25ml=1.42M*V_24.5M∗25ml=1.42M∗V

2

V_2=\frac{(4.5M*25ml)}{1.42M}V

2

=

1.42M

(4.5M∗25ml)

Remember 1 mole H2SO4 is equivalent to 2 moles NaOH, that is Normality of H2SO4 = (Molarity x 2)

79.2*2ml=158ml\;of\;1.42M\;NaOH\;will\;be\;required.79.2∗2ml=158mlof1.42MNaOHwillberequired.

Answer:

V_2=158.4mlV

2

=158.4ml

Chemistry: Balancing Chemical Equations

Answers

The balanced chemical equation is the equation where the atoms in the reactant side is equals to the atoms in the product side.

The steps to balance the chemical equation is given as :

1) Count each the type of atom in the reactants and products.  The  number of each atom on both sides are equal or not and If not, then the equation is not balanced.

2) Place coefficients, in front of the symbols or the formulas to increase the number of atoms or the molecules of the substances. write the smallest coefficients possible. do not  the subscripts in chemical formulas.

3) Repeat steps until you get the balanced equation.

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rank a series of molecules by expected solubility in water based on polarity and hydrogen bonding. some slightly soluble compounds are included in this exercise. rank the organic compounds from most soluble to least soluble. to rank items as equivalent, overlap them.

Answers

The solubility  in water based on polarity and hydrogen bonding is that polar compounds dissolves in the water due to the hydrogen bonding.

The polar compounds easily soluble in the water as they makes hydrogen bond with the water. Let us take an example : The order of solubility in some compounds is given as :

CH₃CH₂CH₂COOH > CH₃CH₂CH₂CH₂OH > CH₃CH₂OCH₂CH₂ > CH₃CH₂CH₂CH₃

Carboxylic acid is more soluble in the water as it males more hydrogen bond with water as compared to the alcohol. The last one is not able to make the hydrogen bond with the water . The two types of hydrogen bonding are : intermolecular hydrogen bonding and intermolecular hydrogen bonding.

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Other Questions
which of the following lesions have/has an abrupt or sudden onset? a. pemphigus b. recurrent herpes c. mucous membrane pemphigoid d. lichen planus Soil erosion is a problem that is caused by many different factors. What can humans do to prevent soil erosion? To address this question, first think locally. What industries and businesses in your area may contribute to the erosion problem? What could be done to reduce these contributions? What happens in your state? What happens in your country? Once you have ideas about what can be done, who should be responsible for carrying out these actions? Should the government regulate these activities? Should individual companies take responsibility? the firm requires a safety stock of 12000 worth of inventory even with no sales. however, for each 1-unit (1000) increase in sales, inventory needs to increase by 1000*0.10=100 to support sales. if the firm expects 45000 in sales this coming year it requires ________ in inventory to support sales.A. 18000 B.18500 C14000 D16500 E.14500The intercept has no meaningful interpretation but the beta parameter (slope) says that for each additional centimeter of a plants base diameter the model predicts that the plant will gow to be 7.5cm higher, if a plant has a base diameter of 30cm the regression model predicts a height of _____ using base diameter as a predictor of plant height this model explains 45% of the variation in salesA. 216.4 B. 227.3 D.225.5 E.223.8an agricultural researcher has gathered average temperature and harvest data from a sample of orange gorwers in florida over the past 40 years the researcher ran a regression of oranges harvested in tons on the average temperature in the month preceding the harvest the regression results were oranges harvested =30.2+.40(average temperature) r-square=.40 interpretation this regression model predicts about ______ of the variation in the orange harvest. if the average temperature in the month preceding this year harvest is 64 degrees fahrenheit the model predicts the orange harvest will be ____ if the average temperature were 1 degreee fahreheit higher the expected orange harvest woud be ____ more which words contain an unstressed syllable? select two answers. go and catch a falling star. go and catch a star What does the above photograph commemorate and document? Can someone write an essay from this and this is gonna be on finals too Is there a word after a preposition?. What is a periodic sentence example?. How does latency benefit the users?. What is the main difference between a blank verse and a free verse?. Make the singular nouns plural, and vice versa. Questions Question 1 with 1 blank 1 of 1 l'actrice Question 2 with 1 blank 1 of 1 les lyces Question 3 with 1 blank 1 of 1 les diffrences Question 4 with 1 blank 1 of 1 la chose Question 5 with 1 blank 1 of 1 le bureau Question 6 with 1 blank 1 of 1 le caf Question 7 with 1 blank 1 of 1 les librairies Question 8 with 1 blank 1 of 1 la facult Question 9 with 1 blank 1 of 1 les acteurs Question 10 with 1 blank 1 of 1 l'ami Question 11 with 1 blank 1 of 1 l'universit Question 12 with 1 blank 1 of 1 les tableaux Question 13 with 1 blank 1 of 1 le problme Question 14 with 1 blank 1 of 1 les bibliothques Choose the version of each sentence in which commas are used correctlyin a series.OIn resort towns across the country, shops, restaurants, and historic sites are popularattractions.OIn resort towns across the country, shops, restaurants and historic sites are popularattractions.In resort towns across the country, shops, and restaurants, and historic sites arepopular attractions. Erika is 12 years older than her friend Nick. She is also 3 times as old as Nick. Let x represent Nicks current age. Which of the following is used to account for probable sales discounts, sales returns, and sales allowances?Due from factor, Recourse liabilityO Yes, NoO Yes, YesO No, YesO No, No For governmental accounting, after determining whether a component unit is legally separate, the next step is to determine which of the following?A Whether or not the primary government elects a voting majority of the unit's boardB Whether or not the primary government appoints a voting majority of the unit's boardC Whether or not the voters of the jurisdiction elect the unit's boardD Whether or not the voters of the jurisdiction appoint the unit's board i need help with this What does Emma Lazarus want readers to know about the United States? What is the poems deeper message about American ideologies? Analyze how Lazarus uses figurative language to enhance and promote this message citing evidence from the poem. the species endemicity and richness increase or decrease with increasing of altitude? a researcher wants to conduct a study to determine whether a newly developed anti-tardy program is successful. two random groups of 100 students each, identified as control and treatment groups, are formed from 200 students who are repeatedly late to school. both groups receive a set of anti-tardy reading materials and a lecture from a teacher and a tardy-reformed student about the negative impacts of being late. in addition, the treatment group also receives materials from the newly developed program. thirty-three of the 100 students in the control and 35 of the 100 students in the treatment group are no longer late to school is recorded 6 months later. use the results to test the hypotheses h0: p1 = p2 and Ha: p1 ? p2 where p1 represents the proportion of students who succeed in the control program and p2 represents the proportion of students who succeed in the newly developed program. A 10,300 kg railroad car traveling at a velocity of 19 m/s strikes a second boxcar at rest. If the two cars stick together and move off with a velocity of 6 m/s, what is the mass of the second car?