Question 1

Which of is not a risk factor of excessive exposure to UV-B rays?

Accepted Answer

A) Skin cancer 
B) Premature aging 
C) Cataracts 
D) Depressed immune system 
E) All of these are risk factors. 
A) Skin cancer 
B) Premature aging 
C) Cataracts 
D) Depressed immune system 
E) All of these are risk factors.

Question 2

According to Charles's law, if the volume of a gas is increased by a factor of ten then the ____ of a gas is ____ by a factor of ____.

Accepted Answer

A) volume, increased, ten 
B) volume, decreased, ten 
C) volume, increased, 1\10th 
D) temperature, increased, ten 
E) temperature, decreased, ten 
A) volume, increased, ten 
B) volume, decreased, ten 
C) volume, increased, 1\10th 
D) temperature, increased, ten 
E) temperature, decreased, ten

Question 3

A sample of acetylene gas occupies a volume of 47.2 L under a pressure of 1.63 atm at 25 ° C. What volume will the acetylene occupy if the pressure is decreased to 0.961 atm at 25 ° C?

Accepted Answer

A) 27.8 L 
B) 30.0 L 
C) 32.3 L 
D) 47.8 L 
E) 80.1 L 
A) 27.8 L 
B) 30.0 L 
C) 32.3 L 
D) 47.8 L 
E) 80.1 L

Question 4

Which of these gases is the most abundant in the Earth's atmosphere?

Accepted Answer

A) O2 
B) N2 
C) H2 
D) He 
E) CO2 
A) O2 
B) N2 
C) H2 
D) He 
E) CO2

Question 5

Which of these gases is \are  not a part (either as a reactant or as a product)of the biochemical reaction known as photosynthesis?
I. N2
II. O2
III. H2O
IV. CO2

Accepted Answer

A) I only 
B) I and III 
C) II and III 
D) I and IV 
E) I, III, and IV 
A) I only 
B) I and III 
C) II and III 
D) I and IV 
E) I, III, and IV

Question 6

Which of these gases is absorbed by the earth's oceans, later forming rocks and sedimentation?

Accepted Answer

A) N2 
B) O2 
C) Ar 
D) He 
E) CO2 
A) N2 
B) O2 
C) Ar 
D) He 
E) CO2

Question 7

Which region of the atmosphere is credited with the phenomena known as aurora borealis or the northern lights?

Accepted Answer

A) Firstosphere 
B) Mesosphere 
C) Stratosphere 
D) Troposphere 
E) Ionosphere 
A) Firstosphere 
B) Mesosphere 
C) Stratosphere 
D) Troposphere 
E) Ionosphere

Question 8

Which of these statements concerning pressure and weather are correct ?
I. Low pressure in a region tends to draw in storms.
II. High pressure in a region usually indicates clear weather.
III. Changes in pressure from region to region are responsible for winds.

Accepted Answer

A) I only 
B) III only 
C) I and II 
D) I and III 
E) I, II, and III 
A) I only 
B) III only 
C) I and II 
D) I and III 
E) I, II, and III

Question 9

In a sample of a nearly ideal gas, this graph could represent a plot of
​

Accepted Answer

A) Boyle's law, V vs. T at a given constant P. 
B) Charles's law, P vs. T at a given constant V. 
C) Boyle's law, P vs. V at a given constant T. 
D) Dalton's law, PV vs. P at a given constant T. 
E) Avogadro's law, P vs. n at a constant T. 
A) Boyle's law, V vs. T at a given constant P. 
B) Charles's law, P vs. T at a given constant V. 
C) Boyle's law, P vs. V at a given constant T. 
D) Dalton's law, PV vs. P at a given constant T. 
E) Avogadro's law, P vs. n at a constant T.

Question 10

Which of the following is the formula for the chemical compound found in airbags?

Accepted Answer

A) Na3N 
B) NaN3 
C) Na2O 
D) NaO2 
A) Na3N 
B) NaN3 
C) Na2O 
D) NaO2

Question 11

Which of these pollutants can contribute to damage to the kidneys, liver, and nervous system?

Accepted Answer

A) CO 
B) NO2 
C) SO2 
D) O3 
E) Pb 
A) CO 
B) NO2 
C) SO2 
D) O3 
E) Pb

Question 12

What causes pressure?

Accepted Answer

A) Constant small fluctuations in temperature 
B) Collisions of gas molecules with other gas molecules 
C) Collisions of gas molecules with their container 
D) Weather 
E) None of the above 
A) Constant small fluctuations in temperature 
B) Collisions of gas molecules with other gas molecules 
C) Collisions of gas molecules with their container 
D) Weather 
E) None of the above

Question 13

Which of these compounds replaced CFCs used in refrigeration?

Accepted Answer

A) HCFCs 
B) Freon-12 
C) CO2 
D) N2 
E) silicon 
A) HCFCs 
B) Freon-12 
C) CO2 
D) N2 
E) silicon

Question 14

Which of these regions has the most significant ozone depletion?

Accepted Answer

A) North America 
B) Eastern Europe 
C) Antarctica 
D) Middle East 
E) Southern Africa 
A) North America 
B) Eastern Europe 
C) Antarctica 
D) Middle East 
E) Southern Africa

Question 15

The noble gas argon accounts for approximately what % of the earth's atmosphere?

Accepted Answer

A) 10% 
B) 1% 
C) 0.1% 
D) 0.01% 
E) 0.001% 
A) 10% 
B) 1% 
C) 0.1% 
D) 0.01% 
E) 0.001%

Question 16

A basketball is inflated to a pressure of 1.50 atm in a 20.0 ° C garage. What is the pressure of the basketball outside where the temperature is − 5.00 ° C?

Accepted Answer

A) 0.375 atm 
B) 1.37 atm 
C) 1.42 atm 
D) 1.67 atm 
E) 3.01 atm 
A) 0.375 atm 
B) 1.37 atm 
C) 1.42 atm 
D) 1.67 atm 
E) 3.01 atm

Question 17

A sample of helium occupies 1.40 L at 0 ° C and 760 torr. What pressure will the same gas exert in a 0.500 L vessel at 100 ° C?

Accepted Answer

A) 371 torr 
B) 624 torr 
C) 1.56 × 103 torr 
D) 2.91 × 103 torr 
E) 4.05 × 103 torr 
A) 371 torr 
B) 624 torr 
C) 1.56 × 103 torr 
D) 2.91 × 103 torr 
E) 4.05 × 103 torr

Question 18

Nitrogen fixation converts nitrogen to ________.

Accepted Answer

A) cellulose 
B) nitrates 
C) nitrogen oxides 
D) nitric acid 
A) cellulose 
B) nitrates 
C) nitrogen oxides 
D) nitric acid

Question 19

Which of these is not a possible unit for pressure?

Accepted Answer

A) g\mL 
B) lb\in2 
C) Pa 
D) N\m2 
E) mm Hg 
A) g\mL 
B) lb\in2 
C) Pa 
D) N\m2 
E) mm Hg

Question 20

The "PM" in the abbreviation PM-2.5 stands for?

Accepted Answer

A) Primary mist 
B) Pollutant material 
C) Particulate matter 
D) Particles of metal 
E) None of the above 
A) Primary mist 
B) Pollutant material 
C) Particulate matter 
D) Particles of metal 
E) None of the above

Which of is not a risk factor of excessive exposure to UV-B rays?

According to Charles's law, if the volume of a gas is increased by a factor of ten then the of a gas is by a factor of .

A sample of acetylene gas occupies a volume of 47.2 L under a pressure of 1.63 atm at 25 ° C. What volume will the acetylene occupy if the pressure is decreased to 0.961 atm at 25 ° C?

Which of these gases is the most abundant in the Earth's atmosphere?

Which of these gases is \are not a part (either as a reactant or as a product)of the biochemical reaction known as photosynthesis? I. N₂ II. O₂ III. H₂O IV. CO₂

Which of these gases is absorbed by the earth's oceans, later forming rocks and sedimentation?

Which region of the atmosphere is credited with the phenomena known as aurora borealis or the northern lights?

Which of these statements concerning pressure and weather are correct ? I. Low pressure in a region tends to draw in storms. II. High pressure in a region usually indicates clear weather. III. Changes in pressure from region to region are responsible for winds.

In a sample of a nearly ideal gas, this graph could represent a plot of

Which of the following is the formula for the chemical compound found in airbags?

Which of these pollutants can contribute to damage to the kidneys, liver, and nervous system?

What causes pressure?

Which of these compounds replaced CFCs used in refrigeration?

Which of these regions has the most significant ozone depletion?

The noble gas argon accounts for approximately what % of the earth's atmosphere?

A basketball is inflated to a pressure of 1.50 atm in a 20.0 ° C garage. What is the pressure of the basketball outside where the temperature is − 5.00 ° C?

A sample of helium occupies 1.40 L at 0 ° C and 760 torr. What pressure will the same gas exert in a 0.500 L vessel at 100 ° C?

Nitrogen fixation converts nitrogen to ________.

Which of these is not a possible unit for pressure?

The "PM" in the abbreviation PM-2.5 stands for?

Molecular Reasons

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Acids and Bases: the Molecules Responsible for Sour and Bitter

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Exam 11: The Air Around Us

Which of is not a risk factor of excessive exposure to UV-B rays?

According to Charles's law, if the volume of a gas is increased by a factor of ten then the ____ of a gas is ____ by a factor of ____.

A sample of acetylene gas occupies a volume of 47.2 L under a pressure of 1.63 atm at 25 ° C. What volume will the acetylene occupy if the pressure is decreased to 0.961 atm at 25 ° C?

Which of these gases is the most abundant in the Earth's atmosphere?

Which of these gases is \are not a part (either as a reactant or as a product)of the biochemical reaction known as photosynthesis? I. N2 II. O2 III. H2O IV. CO2

Which of these gases is absorbed by the earth's oceans, later forming rocks and sedimentation?

Which region of the atmosphere is credited with the phenomena known as aurora borealis or the northern lights?

Which of these statements concerning pressure and weather are correct ? I. Low pressure in a region tends to draw in storms. II. High pressure in a region usually indicates clear weather. III. Changes in pressure from region to region are responsible for winds.

In a sample of a nearly ideal gas, this graph could represent a plot of ​

Which of the following is the formula for the chemical compound found in airbags?

Which of these pollutants can contribute to damage to the kidneys, liver, and nervous system?

What causes pressure?

Which of these compounds replaced CFCs used in refrigeration?

Which of these regions has the most significant ozone depletion?

The noble gas argon accounts for approximately what % of the earth's atmosphere?

A basketball is inflated to a pressure of 1.50 atm in a 20.0 ° C garage. What is the pressure of the basketball outside where the temperature is − 5.00 ° C?

A sample of helium occupies 1.40 L at 0 ° C and 760 torr. What pressure will the same gas exert in a 0.500 L vessel at 100 ° C?

Nitrogen fixation converts nitrogen to ________.

Which of these is not a possible unit for pressure?

The "PM" in the abbreviation PM-2.5 stands for?

Molecular Reasons

The Chemists Toolbox

Atoms and Elements

Molecules, Compounds, and Chemical Reactions

Chemical Bonding

Organic Chemistry

Light and Color

Nuclear Chemistry

Energy for Today

Energy for Tomorrow: Solar and Other Renewable Energy Sources

The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

Oxidation and Reduction

The Chemistry of Household Products

Biochemistry and Biotechnology

Drugs and Medicine: Healing, Helping, and Hurting

The Chemistry of Food

Nanotechnology

Filters

According to Charles's law, if the volume of a gas is increased by a factor of ten then the of a gas is by a factor of .

Which of these gases is \are not a part (either as a reactant or as a product)of the biochemical reaction known as photosynthesis? I. N₂ II. O₂ III. H₂O IV. CO₂

In a sample of a nearly ideal gas, this graph could represent a plot of