Answers
There are 2 interphases: anode solid electrolyte interphase and cathode electrolyte interphase.
In battery systems an interphase forms at the interface between electrode and electrolyte at the decomposition of the latter. In fig. cathode and anode surface of the atom has been shown. The ions are transported in bulk electrolyte and then pass through desolvation pass to pass this cathode electrolyte interphase. This interphase must have high permeability, and sensitivity, an electronic insulator, should be insoluble and inert so that it doesn't create any issue in the system and will not affect the chemical and electrochemical environment of the cell. Thereby after the desolvation process, it can easily pass the interphase.
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Related Questions
Based on the Tonicity in Elodea Cells lab, a hypotonic environment causes a cell to swell or burst because
-the water in the solution moves into the plant cell.
-the solutes in the solution have a lower concentration than the solute concentration inside the plant cell.
-the water is moving down its concentration gradient from high to low.
-The water moved across the selectively permeable membrane down its concentration gradient from an area of high water concentration to an area of low water concentration. There were fewer solutes in the solution and more solutes in the cell, which is why the water moved into the cell.
Answers
A hypotonic environment causes a cell to swell or burst because the water is moving down its concentration gradient from high to low.
What is hypotonic environment?
A hypotonic environment is an environment where the concentration of solutes outside a cell is lower than the concentration of solutes inside the cell. This can cause water to move into the cell by osmosis, causing the cell to swell and possibly even burst. Hypotonic environments are most commonly found in aquatic environments, but can also be seen in a variety of other settings, such as in a cell culture dish or in a protein crystallization experiment. In the case of aquatic environments, hypotonic solutions are those that have a lower salt concentration than the solution inside the cell, causing the cell to absorb more water than it would in a hypertonic solution.
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true/false. the solvent is usually referred to as the component of a solution which is present as: (select all that apply.) one liter the larger quantity the smaller quantity the liquid which dissolves a solid
Answers
The solvent is usually referred to as the component of a solution the smaller quantity.
What is a solvent in chemistry?A solute can be dissolved by a solvent, which creates a solution. In addition to being a liquid, a supercritical fluid, a solid, or a gas can also be a solvent.Many reactions are made easier by solvents, which are substances that dissolve solutes and create solutions. They are utilised for a variety of tasks, including dry cleaning, painting, and extractions. They can be as hazardous as dichloromethane or as harmless as water.The solute is the thing that needs to dissolve, and the solvent is the thing that needs to dissolve it. With a wide variety of solutes and solvents, solutions can be created. We are aware of a wide range of solutions.Learn more about Solvent refer to ;
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Before a chemical equation can be used to conduct stoichiometric analysis, it must balanced. Type the balanced chemical equation for this reaction between solid sulfur and oxygen gas. Express your answer as a chemical equation including phases. View Available Hint(s) ΑΣΦ ? S(s) +0,(g)SO, (g) A chemical reaction does not occur for this question
Answers
The balanced chemical equation for this reaction between solid sulfur and oxygen gas is 2S(s) + O2(g) → 2SO2(g)
what is chemical equation?
The symbolic representation of a chemical reaction is a chemical equation.It shows the reactants (starting materials) on the left side and the products (resulting substances) on the right side. The substances reactants and products are represented by their chemical formulas. The arrow between the reactants and products represents the yield of the reaction. A chemical equation must be balanced, meaning that the number of each type of atom on each side of the equation must be equal. Balancing a chemical equation involves changing the number of atoms in the reactant and product side of the equation so that the number of each type of atom is the same on both sides. Chemical equations are used to describe and predict the outcome of a chemical reaction.
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three equations representing a chemical reaction are shown. classify each equation according to type. molecular equation molecular equation drop zone empty. total ionic equation total ionic equation drop zone empty. net ionic equation net ionic equation drop zone empty.
Answers
The three equation representing a chemical reaction are shown as :
a) Total ionic equation
b) Net ionic equation
c) Molecular equation
The three equation represented as below :
a) Pb²⁺ (aq) + 2NO₃⁻(aq) + 2Na⁺ (aq) + 2Cl⁻ (aq) ---->
PbCl₂ (s) + 2Na⁺ (aq) + 2NO₃⁻ (aq) = total ionic equation, The complete ionic equation shows all of the dissociated ions in a chemical reaction.
b) Pb²⁺ (aq) + 2Cl⁻ (aq) ---> PbCl₂ (s) = net ionic equation, The net ionic equation is the chemical equation that shows only the elements, compounds, and ions that are involved in the chemical reaction.
c) Pb(NO₃)₂ (aq) + 2NaCl (aq) ---> PbCl₂ (s) + 2NaNO₃ (aq) = molecular equation, A molecular equation is a balanced chemical equation. The ionic compounds are indicated as molecules instead of the component ions.
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C3H8 + 5O2 → 3CO2 + 4H2O
How many moles of H2O will be created if you burn 1.5 moles of C3H8?
a
6.0
b
0.375
c
0.75
d
2.5
Answers
According to the stoichiometry of the given chemical reaction, 2.5 moles of water will be created if you burn 1.5 moles of propane.
What is stoichiometry?It is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.
Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.
In the given reaction, 44 g of propane gives 72 g water, thus 1.5 moles will give 1.5×72/44=2.45≅2.5
Thus, 2.5 moles of water will be created if you burn 1.5 moles of propane.
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select the correct conversion factor for each step in the following roadmap for a substance with a density of 1 g/ml.
Answers
The appropriate conversion factor for a substance with the following density for each step in the road map is:Converting from grams to milliliters is as follows: 1. 1 g/ml 2. 1 ml = 0.001 L
What does milliliters mean?
The metric system frequently uses milliliters (mL) as a unit of capacity or volume measurement. One liter is equal to 1,000 milliliters, so it is one thousandth of a liter. A liquid or a solid's volume is measured in milliliters. 500 mL of water, for instance, could be found in a bottle of water. As they are frequently more accurate than other measurements, milliliters are also used to measure medication dosages.To learn more about milliliters
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In each pair below identify which you would expect to have the highest boiling point. Please justify your answers. a. 1-hexanol or 3,3-dimethyi-1-butanol b. 2-hexanol or 1,5-hexanediol
Answers
In each pair below identify which you would expect to have the highest boiling point. The correct Option is b 2-hexanol or 1,5-hexanediol
b. 1,5-hexanediol would have the higher boiling point. This is because 1,5-hexanediol has a higher molecular weight than 2-hexanol and it has two hydroxyl groups (OH) in its structure which creates more intermolecular forces of attraction than a single alcohol group in 2-hexanol. Additionally, diols have stronger intermolecular forces than alcohols due to the formation of hydrogen bonds between the hydroxyl groups.The boiling point is the temperature at which a liquid changes its state to a gas at a particular pressure. It is the temperature at which the vapor pressure of a liquid is equal to the pressure of the surrounding atmosphere. At the boiling point, the liquid is at a state of thermodynamic equilibrium with its vapor, and any further increase in temperature will cause bubbles of vapor to form within the liquid.
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emergent behavior at the calcitewater interface during reactive transport in a simple microfluidic channel. true or false
Answers
False. Emergent behavior at the calcitewater interface is not typically observed during reactive transport in a simple microfluidic channel.
What is calcitewater interface?
Calcitewater interface is a type of interface between two different types of surfaces that are made of calcium carbonate, such as limestone and marble. The interface between these two materials provides an interface which is extremely resistant to erosion and is also highly effective at preventing water from passing through it. Calcitewater interfaces are commonly used in water treatment plants to protect the plant's equipment from erosion caused by the naturally acidic water. The interface works by reducing the alkalinity of the water, which helps to reduce corrosion and sedimentation, as well as reducing the amount of dissolved solids that are present in the water.
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Consider the following reaction:
N2H4(g)+H2(g)→2NH3(g)
If the rate of decrease for the partial pressure of N2H4 in a closed reaction vessel is 78 torr/h, what is the rate of change for the partial pressure of NH3 in the same vessel? What is the rate of change of total pressure in the vessel during the reaction?
Answers
In the same vessel, the partial pressure of NH3 would change at a rate of change of 156 torr/h, which is twice as fast as the partial pressure of N2H4 did.
What is the rate of change for the partial pressure of NH3?Generally, The rate of change for the partial pressure of NH3 in the same vessel would be double the rate of decrease for the partial pressure of N2H4, or 156 torr/h.
The rate of change of total pressure in the vessel during the reaction can be calculated by adding the rate of decrease of N2H4 to the rate of increase of NH3.
Since the rate of decrease for N2H4 is 78 torr/h and the rate of increase for NH3 is 156 torr/h, the rate of change of total pressure in the vessel during the reaction would be
78 + 156 = 234 torr/h.
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Later in the course, we will compare the halogenation of differently substituted carbons, comparing reactions like the ones below. Which of the following statements is true about reactions I and II? O Neither reaction has a positive heat of reaction (AH) O Only reaction II has a positive heat of reaction (AH) O Only reaction I has a positive heat of reaction (AHº) O Both reactions have a positive heat of reaction (Hº)
Answers
The assertions regarding reactions I and II in the reactions connected below are correct; neither reaction has a positive heat of reaction .
A material can be halogenated chemically by adding one or more halogens to it. Because halide-containing substances are so prevalent, this kind of transformation is essential for creating polymers and medicines, among other things. In fact, this kind of conversion happens so frequently that it is hard to give a complete description. This article's main focus is on how elemental halogens are used in halogenation (F2, Cl2, Br2, I2). Halogen acids and halide salts are frequently used to introduce halides. For the purpose of adding halogens to a range of substrates, including thionyl chloride, there are a number of specialized reagents available.
complete question:Later in the course, we will compare the halogenation of differently substituted carbons, comparing reactions like the ones below.
Which of the following statements is true about reactions I and II?
A: Only reaction II has a positive heat of reaction
B: Neither reaction has a positive heat of reaction
C: Both reactions have a positive heat of reaction
D: Only reaction I has a positive heat of reaction
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A 0.160-g sample of unknown metal (X) reacts with hydrochloric acid to produce 66.5 mL of "wet" gas at 20°C and 754 mm Hg. What is the unknown metal (X)? (The vapor pressure of water at 20°C is 18 mm Hg.)
1X(s) + 4 HCl(aq) → 1 XCl4(aq) + 2 H2(g)
Answers
The unknown metal (X), given that it reacts to produce 66.5 mL of "wet" gas at 20 °C and 754 mm Hg is palladium (Pd)
How do I determine the identity of the metal X?We'll begin by obtaining the number of mole of the gas, H₂ produced. Details below:
Temperature (T) = 20 °C = 20 + 273 = 293 KVolume (V) = 66.5 mL = 66.5 / 1000 = 0.0665 L Pressure (P) = 754 - 18 = 736 mmHg = 736 / 760 = 0.968 atmGas constant (R) = 0.0821 atm.L/Kmol Number of mole (n) =?PV = nRT
0.968 × 0.0665 = n × 0.0821 × 293
Divide both sides by (0.0821 × 293)
n = (0.968 × 0.0665) / (0.0821 × 293)
n = 0.003 mole
Next, we shall determine the mole of the metal. Details below:
X(s) + 4HCl(aq) → XCl₄(aq) + 2H₂(g)
From the balanced equation above,
2 moles of H₂ were obtained from 1 mole of X
Therefore,
0.003 moles of H₂ will obtained from = 0.003 / 2 = 0.0015 mole of X
Finally, we shall determine the identity of the metal by obtaining it's molar mass. Details below:
Mole of metal X = 0.0015 moleMass of metal X = 0.160 gMolar mass of metal X =?Molar mass = mass / mole
Molar mass of X = 0.160 / 0.0015
Molar mass of X = 106.7 g/mol
Since the molar mass of the metal X is 106.67 g/mol, we can conclude that the identity of the metal is palladium (Pd)
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Element X is a solid metal that reacts with chlorine to produce a water-soluble binary compound. The metal combines with chlorine to form a compound with the formula MCl2 MCl2 . What Group of the Periodic Table is Ma member of?
Answers
Element X is a member of Group 17 of the Periodic Table, also known as the Halogen family.
What is chemical elements?Chemical elements are the building blocks of all matter in the universe. They are the simplest form of matter, consisting of single atoms or molecules, and are composed of the same type of atom. There are 118 known elements that make up the periodic table, which are either naturally occurring or artificially created. Each element has unique properties that can be used to describe its characteristics.
All Group 17 elements, including X, are non-metals that are highly reactive and form compounds with most other elements. Element X is likely to be either fluorine, chlorine, bromine, or iodine. When element X reacts with chlorine, it forms a binary compound with the formula MCl2. This compound is water-soluble, meaning it can be dissolved in water.
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A glass vessel contains 32 g of oxygen gas. Assuming ideal behavior; which of the processes listed below would double the pressure exerted on the walls of the vessel? (Select all that apply:) A) Adding 28 g of oxygen gas. B) Raising the temperature of the container from -73 %C to 127 %C C) Adding 32 g of oxygen gas. D) Raising the temperature of the container from 30. %C to 60. "C. D) Adding enough mercury to fill one-half the container
Answers
Adding 28g and 32g of oxygen will double the amount of pressure exerted on the walls.
What is pressure?
Pressure is the force exerted per unit area on an object. In the context of gases, pressure is the force exerted by the collisions of gas molecules on the walls of a container. The pressure exerted by a gas on the walls of a container is directly proportional to the number of moles of gas present in the container and the temperature of the gas.
Option A: Adding 28 g of oxygen gas would increase the number of moles of gas present in the container by 28/32 g/mol = 0.875 moles, which will double the pressure exerted on the walls of the vessel.
Option B: Raising the temperature of the container from -73 %C to 127 %C will increase the kinetic energy of the gas molecules, causing them to collide more frequently and with greater force against the walls of the container. This will increase the pressure exerted on the walls of the container but it will not double the pressure.
Option C: Adding 32 g of oxygen gas would increase the number of moles of gas present in the container by 32/32 g/mol = 1 moles, which will double the pressure exerted on the walls of the vessel.
Option D: Raising the temperature of the container from 30. %C to 60. "C will increase the kinetic energy of the gas molecules, causing them to collide more frequently and with greater force against the walls of the container. This will increase the pressure exerted on the walls of the container but it will not double the pressure.
Option E: Adding enough mercury to fill one-half the container will not affect the pressure exerted by the oxygen gas on the walls of the container as mercury and oxygen are not interacting and don't affect each other pressure.
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Identify the nucleophilic and electrophilic sites in the reactants of the following reaction. LI-Me
Answers
In the reaction LI-Me, the nucleophilic site is the lithium atom (Li) and the electrophilic site is the carbon atom in the methyl group (Me).
In general, lithium (Li) is a highly electropositive metal and acts as a strong nucleophile, meaning it has an excess of electrons and tends to donate them to an electrophile, which is a molecule or atom that has a deficit of electrons and tends to accept them. On the other hand, carbon atom in the methyl group (Me) is considered as a electrophile because it has a partial positive charge due to the presence of hydrogen atoms in its surrounding which causes it to accept electrons. The nucleophilic lithium atom attacks the electrophilic carbon atom in the methyl group, leading to the formation of a new chemical bond and the formation of a new compound.
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Enter the chemical formula of a binary molecular compound of hydrogen and a Group 4A element that can reasonably be expected to be more acidic in aqueous solution than SiH4 , e.g. have a larger Ka .
Answers
The chemical formula for germanium hydride is GeH₄. Germanium hydride is a binary molecular compound of hydrogen and a Group 4A element, also known as a metalloid.
In an aqueous solution, germanium hydride can be expected to be more acidic than silicon hydride (SiH₄) due to differences in the elements' electron configurations.
Germanium has a higher electronegativity than silicon, which means that the electrons in the Ge-H bond will be pulled closer to the germanium atom, making the bond more polar.
This polar nature of the Ge-H bond makes it more likely to dissociate in water, leading to a higher acidity (larger Ka).
In conclusion, germanium hydride (GeH₄) is a binary molecular compound of hydrogen and a Group 4A element, known as a metalloid.
The higher electronegativity of Germanium compared to Silicon makes it more acidic in an aqueous solution. This acidity can be observed by its larger Ka ( acid dissociation constant) value.
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in a laboratory experiment hydrogen gas, h2, could be produced by adding nitric acid, hno3 to which of the following?
Answers
Option B, Nitric acid corrosive (HNO3) could be used to deliver hydrogen gas (H2) to zinc (Zn).
Nitric acid corrosive (HNO3) reacting with a metal in a lab experiment can deliver hydrogen gas (H2) to the system. The "nitric basic analysis" refers to this response. Zinc (Zn) is the metal that responds to nitric acid by corroding and releasing hydrogen gas.
When nitric corrosive is added to zinc, the reaction results in the production of hydrogen gas and nitrate salt as the end products.
Exothermic in nature, this response releases heat, and the resulting combustible hydrogen gas. To determine the presence of zinc in an example and focus on the properties of hydrogen gas, one can use the reaction between nitric corrosive and zinc.
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The question is -
In a laboratory experiment hydrogen gas, h2, could be produced by adding nitric acid, hno3 to which of the following?
a. Mg
b. Zn
c. Cu
d. Hg
for an element in an ionic compound, the number of electrons transferred from the atom to form the ion is the
Answers
For an element in an ionic compound, the number of electrons transferred from the atom to form the ion is called ionic bonding.
An ionic compound is defined as a compound that is formed by ionic bonding. Ionic bonding occurs through the process of electron transfer where one atom gives electrons to another. These compounds are neutral compounds made up of positively charged ions and negatively charged ion. The positively charged ion is called cations and the negatively charged ions called anions. This is a chemical compound composed of ions held together by electrostatic forces. Ionic bond are called electrovalent bond. Electrovalent bond is a type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.
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which of the following would be considered good practice for cleaning up large pieces of contaminated glass in a laboratory biohazard spill?
Answers
We would be considered the good practice for the cleaning up large pieces of the contaminated glass in laboratory biohazard spill is to wear the gloves.
The good practice for the cleaning of the large pieces of the contaminated glass in lab biohazard spill are :
1) To Wear gloves
2) To wear the Lab coat
3)To wear the Face protection
4) To Use a dust pan
5) Use the Tongs
These are practices that should be taken in a laboratory for cleaning of the large pieces of the contaminated glass in lab biohazard spill. These protection should be taken in the lab.
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A
graduated
cylinder
contains
of
buffer
solution.
The
density
of
the
buffer
solution
is
.
What
is
the
mass
in
of
the
buffer
in
the
cylinder?
Answers
Answer:
Explanation:
To calculate the mass of the buffer solution in the graduated cylinder, you would need to know the volume of the buffer solution in the cylinder and the density of the buffer solution.
d = m/v
Given that the density of the buffer solution is and the volume of the buffer solution in the cylinder is, if you multiply the density by the volume, you will get the mass in grams of the buffer in the cylinder
It's not possible to give you an exact number without the density and volume of the buffer.
Each group wants to have ______ in order to be ____
which means ______The goal is to be just like ________________
who already have ____________________
Answers
Each group wants to have "power" in order to be "influential" which means "able to shape and control events and decisions". The goal is to be just like "powerful and influential groups" who already have "a significant level of control and influence".
What is the statement about?The statement is saying that different groups or organizations want to have a certain level of power and influence in order to be able to shape and control events and decisions.
The goal for these groups is to be similar to other powerful and influential groups who already have a significant level of control and influence. This means that the groups want to be in a position where they can make important decisions and have a significant impact on their environment.
Therefore, this could include decisions that affect the group itself, or decisions that affect the broader society or community in which the group operates.
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A solution with 8.35 g of a non-electrolyte solute in 50.0 g naphthalene (Kfp = 6.90°C/m) freezes at 76.5°C. Pure naphthalene freezes at 81.0°C. What is the molar mass of the solute?
Answers
The molar mass of the solution is obtained as 257 g/mol.
What is the molar mass of the solute?We know that the molar mass of the solute is something that we can be able to obtain from the formula for the change in the temperature of the substance.
Thus;
ΔT = K m i
ΔT = temperature change
K = freezing constant
m = molality
i = Vant Hoff factor
Then we have;
ΔT = 81.0°C - 76.5°C = 4.5°C
Thus;
4.5°C = 6.90 * m * 1
m = 4.5/6.90
m = 0.65
Then;
m = mass/molar mass/ Mass of solution in kilograms
0.65 = 8.35/M * 1/50 * 10^-3
M = molar mass
0.65 * 50 * 10^-3 * M =8.35
M = 8.35/0.65 * 50 * 10^-3
M = 257 g/mol
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Which of the following statements correctly describe reaction intermediates? Select all that apply.
Multiple select question.
Answers
A) Reaction intermediates are short-lived molecules that form as a result of a chemical reaction.C) Reaction intermediates are molecules that are produced as a result of a chemical reaction.
What is the molecules ?
Molecules are the smallest unit of a substance that can exist independently and has the same chemical properties as the original substance. They are made up of atoms that are connected together by chemical bonds. Molecules are the basic building blocks of all matter, and they exist in a variety of shapes and forms, including solids, liquids, and gases. Molecules can also be composed of multiple elements, such as water which is composed of two hydrogen atoms and one oxygen atom. Molecules can be found in a wide range of materials, from the air we breathe to the food we eat.
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Complete question
A) Reaction intermediates are short-lived molecules that form as a result of a chemical reaction.
B) Reaction intermediates are stable molecules that form as a result of a chemical reaction.
C) Reaction intermediates are molecules that are produced as a result of a chemical reaction.
D) Reaction intermediates are molecules that remain unchanged throughout a chemical reaction.
which of the following is not a difference in the pathways by which fatty acids are degraded and synthesized?
Answers
The pathways for fatty acid degradation and synthesis are similar but not identical. The key differences between the two pathways are:
Degradation occurs in the mitochondria and involves the breakdown of fatty acids into smaller molecules through beta-oxidation.Synthesis occurs in the cytoplasm and involves the building up of fatty acids from smaller molecules through the process of fatty acid synthesis.The enzymes used in the degradation and synthesis pathways are different.The overall energy balance is different between the two pathways; degradation releases energy while synthesis consumes energy.So the statement "The pathways for fatty acid degradation and synthesis are identical." is not a difference in the pathways.
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HELPPPPP IM GIVING 100 POINTSSSS!!!!!!!!!!
Answers
Answer: O Surface weathering removed material from the rock.
Explanation: Weathering and erosion can cause wear down in rocks, which could be why the rock matter changed over time. Rock matter cannot evaporate since it's not in a liquid state and can't shrink by humidity either. Gravity does have some play in the change of rock matter, but not by compressing the material.
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Which of the following accurately explains why along the same period, a non-metal has a smaller atomic radius than a metal?
A.Non-metals have an expanded octet
B. Non-metals have higher electronegativities
C. Non-metals have higher ionization energies
D. Non-metals have a higher effective nuclear charge
Answers
A non-metal has a smaller atomic radius than a metal along the same period because Non-metals have higher electronegativities.
What is metal?
Metal is an element that is widely used in many industries due to its ability to be molded and formed into a variety of shapes and sizes. It is a hard, dense, and durable material that is resistant to wear, corrosion, and extreme temperatures. Commonly used metals include iron, aluminum, copper, titanium, and steel. These metals have specific properties that make them ideal for use in a variety of applications. Iron is a strong metal used to make steel, which is used for construction and infrastructure. Aluminum is lighter than iron and is often used for objects that need to be moved frequently, such as aircraft and automobiles. Copper is an excellent conductor of electricity and is used in wiring and electronic components.
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When a set of electrodes connected to a light bulb is placed in a solution of dextrose and a current is applied, the light bulb does not light up. When the same unit is placed inHCl, it does. Why?
Answers
Answer:
Dextrose being an organic compound consists of only molecules with covalent bonds, having no free ions to conduct electricity so the bulb doesn't glows. On the other hand, HCl being a polar covalent compound, in its aqueous solution dissociates into ions and the free ions are responsible for conduction of electricity so the bulb glows.
FILL IN THE BLANK lemon juice has a ph of about 2.0, compared to a ph of about 1.0 for stomach acid. therefore, the concentration of h in stomach acid is_______than that of lemon juice.
Answers
The concentration of h in stomach acid is 10 times higher than that of lemon juice.
What is concentration ?
A solution's concentration is determined by how much solute has been dissolved in a given amount of solvent or solution. A concentrated solution is one in which the amount of dissolved solute is substantial. A solution is considered to be diluted when there is just a trace amount of dissolved solute present in it.
What is ph?
Water's pH determines how acidic or basic it is. ranging from 0 to 14, with 7 denoting neutrality. pH levels below 7 indicate acidity, whereas pH values above 7 demonstrate baseness. In reality, the pH of water is a measurement of the amount of free hydrogen and hydroxyl ions present in the solution.
Therefore, concentration of h in stomach acid is 10 times higher than that of lemon juice.
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Bromine monochloride is synthesized using the reaction Br2(g)+Cl2(g)↽−−⇀2BrCl(g)p=1.1×10−4 at 150 K A 201.0 L flask initially contains 0.902 kg of Br2 and 1.066 kg of Cl2. Calculate the mass of BrCl , in grams, that is present in the reaction mixture at equilibrium. Assume ideal gas behavior.
Answers
The mass of BrCl that is present in the reaction mixture at equilibrium is 0.519 grams
What is a mass of BrCl?Generally, To calculate the mass of BrCl present at equilibrium, we need to use the equilibrium constant expression (Kp) for the reaction:
Kp = [BrCl]^2 / [Br2] [Cl2]
where [BrCl], [Br2], and [Cl2] are the concentrations of the respective gases at equilibrium.
Since we know the initial amounts of Br2 and Cl2, and the volume of the flask, we can calculate the initial concentrations of each gas.
[Br2]_initial = 0.902 kg / (201.0 L * 0.08206 Latm/molK * 150 K)
= 0.0014 mol/L [Cl2]_initial
= 1.066 kg / (201.0 L * 0.08206 Latm/molK * 150 K)
= 0.0017 mol/L
We are also given the value of Kp, so we can substitute the initial concentrations into the Kp expression and solve for [BrCl].
Kp = [BrCl]^2 / 0.0014 mol/L * 0.0017 mol/L
= (1.1×10^-4)
[BrCl] = √(Kp * [Br2]_initial * [Cl2]_initial)
=√(1.1×10^-4 * 0.0014 mol/L * 0.0017 mol/L)
= 1.61802349*10^{-5} mol/L
To convert molarity to mass, we need to multiply the molarity by the molar mass of BrCl.
The molar mass of BrCl is
(2 * 79.904 g/mol) = 159.808 g/mol.
mass of BrCl = [BrCl] * V * M
=1.61802349*10^{-5}mol/L * 201.0 L * 159.808 g/mol
= 0.519 grams
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Airbags are activated when a severe impact causes a steel ball to compress a spring and electrically ignite a detonator cap. This causes sodium azide (NaN3) to decompose explosively according to the following reaction.2NaN3(s)→2Na(s)+3N2(g)What mass of NaN3(s) must be reacted in order to inflate an airbag to 73.1 L at s.t.p?
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To inflate an airbag to 73.1 L at s.t.p., we need to know the moles of gas produced by the decomposition of sodium azide. We can use the Ideal Gas Law, PV = nRT, to calculate this.
We know that P = 1 atm (s.t.p.), V = 73.1 L, R = 0.08206 Latm/molK, and T = 273 K (0 °C).
Rearrange the Ideal Gas Law to n = PV/RTn = (1 atm * 73.1 L) / (0.08206 Latm/molK * 273 K)
n = 0.26 moles of N2 gas
Since 2 moles of N2 are produced per mole of NaN3, we can divide the number of moles of N2 by 2 to find the number of moles of NaN3.
n(NaN3) = n(N2) / 2n(NaN3) = 0.26 moles / 2 = 0.13 moles. To find the mass, we multiply the number of moles by the molar mass of NaN3.
mass(NaN3) = n(NaN3) * molar mass(NaN3)
mass(NaN3) = 0.13 moles * 65.01 g/mol ≈ 8.45 g
So, 8.45 g of NaN3 is needed to inflate an airbag to 73.1 L at s.t.p
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which of the following statements about process (functional) layouts is/are correct? multiple select question. equipment is arranged in sequence order of processing so the product can flow smoothly down the line. process layouts are common in service environments. process layouts often use higher skilled labor than product layouts do. equipment is selected for high-volume output. equipment is arranged by type rather than by processing sequence.
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The process(functional) layouts is where the work stationary and the machinery are not arranged according to the production sequence.
The process (functional) layouts are :
1) Process layouts are the common in Service environments.
2) Equipment is arranged by the type rather than processing sequence.
3) Process layouts often use the higher skilled labor than Product layouts do.
The process layout is also called as functional layout. The process ( functional) layouts handle a variety of goods or services. In the process layouts the similar items are grouped together. In the process layout, the jobs are grouped by the function, not by the product.
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