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Chapter 10
Chapter 9A
Chapter 9B
Chapter 9C
Chapter 8
100
STP is:

a. standard temperature and pressure

b. 0 degrees Celsius and 1 atm

c.  0 degrees Celsius and 101.3 kPa

d.  all of these

d.  all of these
100

Which gas will diffuse at a faster rate?  CH4 with a molar mass of 16 g or SO2 with a molar mass of 64 g?

CH4

100
The volume of a gas is doubled while the temperature is unchanged.  The pressure of the gas:

a. is one-half the original pressure

b. is doubled

c. varies depending on the gas

d. remains unchanged

a. is one-half the original pressure

100
Does the average kinetic energy of the gas particles in an inflated inner tube increase or decrease if the sun heats the inner tube from 20 to 30 degrees C?
increase
100
Stoichiometry is the study of what kind of relationship in a chemical reaction?

a. quality

b. quantity

c. reactants

d. products

b. quantity

200
Solutions that conduct a current are called:

a. electrolytes

b. nonelectrolytes

a. electrolytes
200
According to Avogadro's principle, equal volumes of ideal gases at the same temperature and pressure contain equal numbers of ____

a. protons

b. neutrons

c. electrons

d. particles

d. particles
200
A gas in a rigid container is heated so that its Kelvin temperature doubles.  What happens to its pressure

a. nothing

b. it doubles

c. it is halved

b. it doubles

200
What is the name of the instrument used to measure the pressure of a contained gas?

a. manometer

b. pascalometer

c. pressureometer

d. barometer

a. manometer

200
What do the coefficients in a balanced chemical equation always represent?

a. gram ratio

b. mole ratio

c. both a and b are correct

b. mole ratio

300
In a solution, the substance that is present in the greater amount is the:

a. solute.

b. solvent

b. solvent
300
This gas law describes the relationship between the pressure, volume, temperature, and number of moles of molecules of an ideal gas.

a. ideal gas law

b. combined gas law

c. Graham's law of diffusion

d. Avogadro's law

a. ideal gas law
300
For a fixed mass of gas at constant temperature, Boyle's Law states that:

a. the volume of a gas varies directly with pressure

b. the volume of a gas varies inversely with pressure

c. the temperature of a gas varies inversely with pressure

d. the temperature of a gas varies directly with pressure

b. the volume of a gas varies inversely with pressure

300
STP is

a. standard temperature and pressure

b. 0 deg C and 1 atmosphere pressure

c. 0 dec C and 101.3 kPa

d. all of these

d. all of these

300
You are given the mass of one of the reactants in a chemical reaction and asked to find the mass of one of the products.  What is your first step?

a.  get out a balance

b. check to make sure the equation is balanced

c. "make the switch" using the mole ratio

d. give up - it's too hard

b. check to make sure the equation is balanced

400
The scattering of light by a colloid or suspension is referred to as:

a. dispersion

b. emulsification

c. the Tyndall Effect

d. Henry's Law

c. the Tyndall Effect
400
This gas law expresses the relationship between the pressure, volume, and temperature of a fixed amount of gas:

a. ideal gas law

b. combined gas law

c. Graham's law of diffusion

d. Avogadro's law

b. combined gas law
400
At constant pressure, as the temperature of a fixed mass of gas increases, the volume will:

a. vary inversely

b. decrease.

c. be unchanged.

d. increase

d. increase

400
What would be the density of a 10-gram object that displaces two milliliters of water?

a. five

b. twenty

c. five grams per milliliter

d. 20 grams per milliliter

c. five grams per milliliter



400
You are working in the lab and find the mass of one of the products in a chemical reaction.  What is this called?

a. actual yield

b. theoretical yield

c. percent yield

a. actual yield

500
A solid solution of different metals is called a(n) __________________.
alloy
500
Deep-sea divers use a breathing mixture of helium, oxygen, and carbon dioxide.  What is the partial pressure of oxygen if the total pressure of the mixture is 760 mmHg, the pressure exerted by the helium is 609 mmHg, and the pressure exerted by the carbon dioxide is 1 mmHg?

a. 760 mmHg, b. 500 mmHg, c. 150 mmHg, d. 609 mmHg

c. 150 mmHg
500
The lowest possible temperature is:

a. -273 K

b. 0 K

c. 0 degrees Celsius

d. 273 degrees Celsius

b. 0 K

500
The earth's atmosphere has weight, which creates ________ pressure.
atmospheric
500

How many grams of water will be produced if 2.6 grams of oxygen gas react?

2H2 + O2 -> 2H2O

a. 1.5 g H2O

b. 5.2 g H2O

c. 23 g H2O

d. 2.9 g H20

d. 2.9 g H20