Question 1

Convert 8.900× 10-8 meters to nanometers and express the answer in standard notation using the correct number of significant figures.

Accepted Answer

A)  89 nm 
B)  89.0 nm 
C)  89.00 nm 
D)  8.90 nm 
E)  0.8900 nm 
A)  89 nm 
B)  89.0 nm 
C)  89.00 nm 
D)  8.90 nm 
E)  0.8900 nm

Question 2

Which one of the following is most likely to be a heterogeneous mixture?

Accepted Answer

A)  vinegar (a mixture of acetic acid and water) 
B)  blood 
C)  antifreeze (a mixture of water and ethylene glycol) 
D)  sodium chloride (table salt)dissolved in water 
E)  the air trapped inside a car tire 
A)  vinegar (a mixture of acetic acid and water) 
B)  blood 
C)  antifreeze (a mixture of water and ethylene glycol) 
D)  sodium chloride (table salt)dissolved in water 
E)  the air trapped inside a car tire

Question 3

An intensive property of a substance is

Accepted Answer

A)  independent of the amount present. 
B)  dependent on its volume,but not its mass. 
C)  not affected by its temperature. 
D)  dependent only on its temperature. 
E)  dependent only on its mass and volume. 
A)  independent of the amount present. 
B)  dependent on its volume,but not its mass. 
C)  not affected by its temperature. 
D)  dependent only on its temperature. 
E)  dependent only on its mass and volume.

Question 4

Which one of the following statements is not a comparison of physical properties?

Accepted Answer

A)  Mercury and gallium are both liquids at 50°C. 
B)  Oxygen is more soluble in water than helium. 
C)  The density of gold is greater than the density of silver. 
D)  Oxygen and nitrogen are both liquids at -200°C. 
E)  Calcium dissolves more quickly than iron in acids. 
A)  Mercury and gallium are both liquids at 50°C. 
B)  Oxygen is more soluble in water than helium. 
C)  The density of gold is greater than the density of silver. 
D)  Oxygen and nitrogen are both liquids at -200°C. 
E)  Calcium dissolves more quickly than iron in acids.

Question 5

Which of the following is the smallest mass?

Accepted Answer

A)  1.5 × 108 pg 
B)  1.5 × 106 ng 
C)  1.5 × 103 μg 
D)  1.5 × 10-1 mg 
E)  1.5 × 10-5 g 
A)  1.5 × 108 pg 
B)  1.5 × 106 ng 
C)  1.5 × 103 μg 
D)  1.5 × 10-1 mg 
E)  1.5 × 10-5 g

Question 6

If the fuel efficiency of an automobile is 32 miles per gallon,what is its fuel efficiency in kilometers per liter? (1 km = 0.621 mile,1.000 L = 1.057 quarts,4 quarts = 1 gallon)

Accepted Answer

A)  5.3 km/L 
B)  14 km/L 
C)  20 km/L 
D)  75 km/L 
E)  2.0 × 102 km/L 
A)  5.3 km/L 
B)  14 km/L 
C)  20 km/L 
D)  75 km/L 
E)  2.0 × 102 km/L

Question 7

Which method is correct for converting kelvin to Celsius?

Accepted Answer

A)  $\mathrm{T}\left({ }^{\circ} \mathrm{C}\right)=\left(\frac{5^{\circ} \mathrm{C}}{9 \mathrm{~K}}\right) \mathrm{T}(\mathrm{K})+32$ 
B)  $\mathrm{T}\left({ }^{\circ} \mathrm{C}\right)=\left(\frac{9^{\circ} \mathrm{C}}{5 \mathrm{~K}}\right) \mathrm{T}(\mathrm{K})+273.15$ 
C)  $\mathrm{T}\left({ }^{\circ} \mathrm{C}\right)=\frac{5^{\circ} \mathrm{C}}{9 \mathrm{~K}}(\mathrm{~T}(\mathrm{~K})-273.15)$ 
D)  $\mathrm{T}\left({ }^{\circ} \mathrm{C}\right)=\frac{1^{\circ} \mathrm{C}}{1 \mathrm{~K}}(\mathrm{~T}(\mathrm{~K})-273.15)$ 
E)  $\mathrm{T}\left({ }^{\circ} \mathrm{C}\right)=\frac{1^{\circ} \mathrm{C}}{1 \mathrm{~K}}(\mathrm{~T}(\mathrm{~K})+273.15)$ 
A)  $\mathrm{T}\left({ }^{\circ} \mathrm{C}\right)=\left(\frac{5^{\circ} \mathrm{C}}{9 \mathrm{~K}}\right) \mathrm{T}(\mathrm{K})+32$ 
B)  $\mathrm{T}\left({ }^{\circ} \mathrm{C}\right)=\left(\frac{9^{\circ} \mathrm{C}}{5 \mathrm{~K}}\right) \mathrm{T}(\mathrm{K})+273.15$ 
C)  $\mathrm{T}\left({ }^{\circ} \mathrm{C}\right)=\frac{5^{\circ} \mathrm{C}}{9 \mathrm{~K}}(\mathrm{~T}(\mathrm{~K})-273.15)$ 
D)  $\mathrm{T}\left({ }^{\circ} \mathrm{C}\right)=\frac{1^{\circ} \mathrm{C}}{1 \mathrm{~K}}(\mathrm{~T}(\mathrm{~K})-273.15)$ 
E)  $\mathrm{T}\left({ }^{\circ} \mathrm{C}\right)=\frac{1^{\circ} \mathrm{C}}{1 \mathrm{~K}}(\mathrm{~T}(\mathrm{~K})+273.15)$

Question 8

If the temperature of a beaker of water is 65.0°F,what is its temperature in Celsius? (Remember: water melts at 0°C and 32°F;water boils at 100°C and 212°F)

Accepted Answer

A)  4.11°C 
B)  18.3°C 
C)  36.1°C 
D)  59.4°C 
E)  68.1°C 
A)  4.11°C 
B)  18.3°C 
C)  36.1°C 
D)  59.4°C 
E)  68.1°C

Question 9

Round the answer to the following problem to the correct number of significant figures. (14.0186 × 0.00458)+ (15.0032 × 0.99542)= 14.99869

Accepted Answer

A)  15.0 
B)  15.00 
C)  14.999 
D)  14.9987 
E)  14.99869 
A)  15.0 
B)  15.00 
C)  14.999 
D)  14.9987 
E)  14.99869

Question 10

Sugar is a compound that dissolves readily in water.Which method is best for separating a mixture of sugar and water?

Accepted Answer

A)  distillation 
B)  light absorption 
C)  electrolysis 
D)  gas-liquid chromatography 
E)  filtration 
A)  distillation 
B)  light absorption 
C)  electrolysis 
D)  gas-liquid chromatography 
E)  filtration

Question 11

The radius of a potassium atom is 0.227 nm.What is the radius in millimeters?

Accepted Answer

A)  2.27 × 10-9 mm 
B)  2.27 × 10-8 mm 
C)  2.27 × 10-7 mm 
D)  2.27 × 10-6 mm 
E)  2.27 × 10-4 mm 
A)  2.27 × 10-9 mm 
B)  2.27 × 10-8 mm 
C)  2.27 × 10-7 mm 
D)  2.27 × 10-6 mm 
E)  2.27 × 10-4 mm

Question 12

Which of the following may be used to separate water into hydrogen and oxygen?

Accepted Answer

A)  Filtration 
B)  Electrolysis 
C)  Distillation 
D)  Chromatography 
E)  Freezing 
A)  Filtration 
B)  Electrolysis 
C)  Distillation 
D)  Chromatography 
E)  Freezing

Question 13

If the density of nitrogen in air is 0.87 g/L,what mass (in kg)of nitrogen is contained in a room with dimensions of 4.0 m × 3.5 m × 2.4 m?

Accepted Answer

A)  29 kg 
B)  39 kg 
C)  2.6 × 10-2 kg 
D)  2.9 × 104 kg 
E)  26 kg 
A)  29 kg 
B)  39 kg 
C)  2.6 × 10-2 kg 
D)  2.9 × 104 kg 
E)  26 kg

Question 14

A standard sheet of paper is 8.5 × 11 inches.What is the surface area,in cm2,of one side of a sheet of paper? (2.54 cm = 1.00 inch)

Accepted Answer

A)  14 cm2 
B)  37 cm2 
C)  94 cm2 
D)  240 cm2 
E)  6.0 × 102 cm2 
A)  14 cm2 
B)  37 cm2 
C)  94 cm2 
D)  240 cm2 
E)  6.0 × 102 cm2

Question 15

Which method is best for removing the pulp from orange juice?

Accepted Answer

A)  distillation 
B)  light absorption 
C)  electrolysis 
D)  gas-liquid chromatography 
E)  filtration 
A)  distillation 
B)  light absorption 
C)  electrolysis 
D)  gas-liquid chromatography 
E)  filtration

Question 16

A solid with a mass of 19.3 g is added to a graduated cylinder filled with water to the 25.0 mL mark.After the solid sinks to the bottom,the water level is at 35.8 mL.What is the density of the solid?

Accepted Answer

A)  0.539 g/mL 
B)  0.560 g/mL 
C)  1.79 g/mL 
D)  2.19 g/mL 
E)  8.50 g/mL 
A)  0.539 g/mL 
B)  0.560 g/mL 
C)  1.79 g/mL 
D)  2.19 g/mL 
E)  8.50 g/mL

Question 17

Many experiments are conducted at 298 K.What is this temperature in Celsius?

Accepted Answer

A)  0°C 
B)  25°C 
C)  55°C 
D)  273°C 
E)  298°C 
A)  0°C 
B)  25°C 
C)  55°C 
D)  273°C 
E)  298°C

Question 18

Which term best describes liquid mercury at room temperature?

Accepted Answer

A)  gas 
B)  element 
C)  compound 
D)  homogeneous mixture 
E)  heterogeneous mixture 
A)  gas 
B)  element 
C)  compound 
D)  homogeneous mixture 
E)  heterogeneous mixture

Question 19

How many miles are covered in a 15 km race? (1 mile = 5280 feet,12 inches = 1 foot,1 inch = 2.54 cm)

Accepted Answer

A)  7.1 mile 
B)  9.3 mile 
C)  11 mile 
D)  15 mile 
E)  26 mile 
A)  7.1 mile 
B)  9.3 mile 
C)  11 mile 
D)  15 mile 
E)  26 mile

Question 20

Water freezes at 0.0°C.What temperature does this correspond to in kelvin?

Accepted Answer

A)  173.2 K 
B)  200.2 K 
C)  273.2 K 
D)  300.2 K 
E)  373.2 K 
A)  173.2 K 
B)  200.2 K 
C)  273.2 K 
D)  300.2 K 
E)  373.2 K

Exam 1: Matter and Measurements

Convert 8.900× 10-8 meters to nanometers and express the answer in standard notation using the correct number of significant figures.

Which one of the following is most likely to be a heterogeneous mixture?

An intensive property of a substance is

Which one of the following statements is not a comparison of physical properties?

Which of the following is the smallest mass?

If the fuel efficiency of an automobile is 32 miles per gallon,what is its fuel efficiency in kilometers per liter? (1 km = 0.621 mile,1.000 L = 1.057 quarts,4 quarts = 1 gallon)

Which method is correct for converting kelvin to Celsius?

If the temperature of a beaker of water is 65.0°F,what is its temperature in Celsius? (Remember: water melts at 0°C and 32°F;water boils at 100°C and 212°F)

Round the answer to the following problem to the correct number of significant figures. (14.0186 × 0.00458)+ (15.0032 × 0.99542)= 14.99869

Sugar is a compound that dissolves readily in water.Which method is best for separating a mixture of sugar and water?

The radius of a potassium atom is 0.227 nm.What is the radius in millimeters?

Which of the following may be used to separate water into hydrogen and oxygen?

If the density of nitrogen in air is 0.87 g/L,what mass (in kg)of nitrogen is contained in a room with dimensions of 4.0 m × 3.5 m × 2.4 m?

A standard sheet of paper is 8.5 × 11 inches.What is the surface area,in cm2,of one side of a sheet of paper? (2.54 cm = 1.00 inch)

Which method is best for removing the pulp from orange juice?

A solid with a mass of 19.3 g is added to a graduated cylinder filled with water to the 25.0 mL mark.After the solid sinks to the bottom,the water level is at 35.8 mL.What is the density of the solid?

Many experiments are conducted at 298 K.What is this temperature in Celsius?

Which term best describes liquid mercury at room temperature?

How many miles are covered in a 15 km race? (1 mile = 5280 feet,12 inches = 1 foot,1 inch = 2.54 cm)

Water freezes at 0.0°C.What temperature does this correspond to in kelvin?

Atoms, molecules, and Ions

Mass Relations in Chemistry;stoichiometry

Reactions in Aqueous Solution

Gases

Electronic Structure and the Periodic Table

Covalent Bonding

Thermochemistry

Liquids and Solids

Solutions

Rate of Reaction

Gaseous Chemical Equilibrium

Acids and Bases

Equilibria in Acid-Base Solutions

Complex Ion and Precipitation Equilibria

Spontaneity of Reaction

Electrochemistry

Nuclear Reactions

Complex Ions

Chemistry of the Metals

Chemistry of the Nonmetals

Organic Chemistry

Organic Polymers, natural and Synthetic

Filters

Convert 8.900× 10^-8 meters to nanometers and express the answer in standard notation using the correct number of significant figures.

A standard sheet of paper is 8.5 × 11 inches.What is the surface area,in cm²,of one side of a sheet of paper? (2.54 cm = 1.00 inch)