Question 1

What are the common names for the three states of the compound water?

Accepted Answer

Ice, water

Question 2

Classify the following as a pure substance or a mixture: Bread.

Accepted Answer

The answer of Classify the following as a pure substance...

Question 3

All of the following are properties of sodium. Which one is a physical property of sodium?

Accepted Answer

A) It is a surface turns black when first exposed to air. 
B) It is a solid at 25$\circ$C and changes to a liquid when heated to 98$\circ$C. 
C) When placed in water it sizzles and a gas is formed. 
D) When placed in contact with chlorine it forms a compound that melts at 801$\circ$C. 
E) Sodium is never found as the pure metal in nature. 
A) It is a surface turns black when first exposed to air. 
B) It is a solid at 25$\circ$C and changes to a liquid when heated to 98$\circ$C. 
C) When placed in water it sizzles and a gas is formed. 
D) When placed in contact with chlorine it forms a compound that melts at 801$\circ$C. 
E) Sodium is never found as the pure metal in nature.

Question 4

Express the fraction 1/23 as a decimal to 4 significant figures.

Accepted Answer

A) 0.0434 
B) 0.0435 
C) 0.04347 
D) 0.04348 
E) 0.04350 
A) 0.0434 
B) 0.0435 
C) 0.04347 
D) 0.04348 
E) 0.04350

Question 5

A soft drink costs 75 cents for a 12-oz can. A two-liter bottle costs $1.25. In which form is the soft drink more expensive? How much more expensive? (1.0 L = 1.057 qt, 1 qt = 32 oz)

Accepted Answer

The two-liter bottle

Question 6

A concise verbal or mathematical statement of a relationship between phenomena that is always the same under the same conditions is referred to as

Accepted Answer

A) a hypothesis. 
B) a law. 
C) a theory. 
D) none of the above. 
A) a hypothesis. 
B) a law. 
C) a theory. 
D) none of the above.

Question 7

What is the volume, in cubic centimeters, of a brick that is 4.0 in * 2.7 in * 8.0 in?

Accepted Answer

A) 5.3 cm3 
B) 53 cm3 
C) 87 cm3 
D) 4.8 * 102 cm3 
E) 1.4 * 103 cm3 
A) 5.3 cm3 
B) 53 cm3 
C) 87 cm3 
D) 4.8 * 102 cm3 
E) 1.4 * 103 cm3

Question 8

The diameter of Earth is 12.7 Mm. Express this diameter in centimeters.

Accepted Answer

A) 1.27 * 105 cm 
B) 1.27 * 106 cm 
C) 1.27 * 107 cm 
D) 1.27 * 108 cm 
E) 1.27 * 109 cm 
A) 1.27 * 105 cm 
B) 1.27 * 106 cm 
C) 1.27 * 107 cm 
D) 1.27 * 108 cm 
E) 1.27 * 109 cm

Question 9

Define pure substance.

Accepted Answer

Something

Question 10

The SI base unit of length is the centimeter.

Accepted Answer

A) True 
 B)False

Question 11

Mass, length, and volume are extensive properties, but density is an intensive property.

Accepted Answer

A) True 
 B)False

Question 12

A barrel of oil contains 42.0 gallons. How many liters is this? (1L = 1.06 qt)

Accepted Answer

A) 9.9 L 
B) 11 L 
C) 142 L 
D) 158 L 
E) 178 L 
A) 9.9 L 
B) 11 L 
C) 142 L 
D) 158 L 
E) 178 L

Question 13

A microliter corresponds to:

Accepted Answer

A) 10- 2 liters. 
B) 10- 3 liters. 
C) 10- 6 liters. 
D) 10- 9 liters. 
E) 10- 12 liters. 
A) 10- 2 liters. 
B) 10- 3 liters. 
C) 10- 6 liters. 
D) 10- 9 liters. 
E) 10- 12 liters.

Question 14

Choose the response that includes all the items listed below that are pure substances. 
i. orange juice 
ii. steam 
iii. ocean water 
iv. oxygen 
v. vegetable soup

Accepted Answer

A) i, iii, v 
B) ii, iv 
C) i, iii, iv 
D) iv only 
E) all of them are pure 
A) i, iii, v 
B) ii, iv 
C) i, iii, iv 
D) iv only 
E) all of them are pure

Question 15

An organic liquid has a density of 0.8 g/cm3. What is the mass of a 42.0 mL sample of this liquid?

Accepted Answer

Question 16

Liquid nitrogen boils at -195.8$\circ$C. Express the boiling point of liquid nitrogen in $\circ$F.

Accepted Answer

A) -384.4$\circ$F 
B) -352.4$\circ$F 
C) -320.4$\circ$F 
D) -140.8$\circ$F 
E) -76.8$\circ$F 
A) -384.4$\circ$F 
B) -352.4$\circ$F 
C) -320.4$\circ$F 
D) -140.8$\circ$F 
E) -76.8$\circ$F

Question 17

What is the volume, in cubic inches, of a brick that is 4.0 in * 2.7 in * 8.0 in?

Accepted Answer

A) 15 in3 
B) 51 in3 
C) 78 in3 
D) 87 in3 
E) 150 in3 
A) 15 in3 
B) 51 in3 
C) 78 in3 
D) 87 in3 
E) 150 in3

Question 18

What is the density of copper if 11.8 cm3 of copper has a mass of 105.2 g?

Accepted Answer

Question 19

An object will float at the surface of a liquid if the mass of the object is less than the mass of the liquid that it displaces. A spherical vessel (diameter = 5.00 cm)when empty has a mass of 12.00 g. What is the greatest volume of water that can be placed in the vessel and still have the vessel float at the surface of benzene? (Given: density of water = 1.00 g/cm3; density of benzene = 0.879 g/cm3)

Accepted Answer

A) 45.5 mL 
B) 448 mL 
C) 53.4 mL 
D) 57.5 mL 
E) 65.4 mL 
A) 45.5 mL 
B) 448 mL 
C) 53.4 mL 
D) 57.5 mL 
E) 65.4 mL

Question 20

The Hope diamond weighs 44.0 carats. Determine the volume occupied by the diamond, given that its density is 3.5 g/cm3 at 20$\circ$C, and that 1 carat = 0.200 g.

Accepted Answer

A) 2.5 cm3 
B) 0.40 cm3 
C) 0.016 cm3 
D) 63 cm3 
E) 150 cm3 
A) 2.5 cm3 
B) 0.40 cm3 
C) 0.016 cm3 
D) 63 cm3 
E) 150 cm3

Exam 1: Introduction

What are the common names for the three states of the compound water?

Classify the following as a pure substance or a mixture: Bread.

All of the following are properties of sodium. Which one is a physical property of sodium?

Express the fraction 1/23 as a decimal to 4 significant figures.

A soft drink costs 75 cents for a 12-oz can. A two-liter bottle costs $1.25. In which form is the soft drink more expensive? How much more expensive? (1.0 L = 1.057 qt, 1 qt = 32 oz)

A concise verbal or mathematical statement of a relationship between phenomena that is always the same under the same conditions is referred to as

What is the volume, in cubic centimeters, of a brick that is 4.0 in * 2.7 in * 8.0 in?

The diameter of Earth is 12.7 Mm. Express this diameter in centimeters.

Define pure substance.

The SI base unit of length is the centimeter.

Mass, length, and volume are extensive properties, but density is an intensive property.

A barrel of oil contains 42.0 gallons. How many liters is this? (1L = 1.06 qt)

A microliter corresponds to:

Choose the response that includes all the items listed below that are pure substances. i. orange juice ii. steam iii. ocean water iv. oxygen v. vegetable soup

An organic liquid has a density of 0.8 g/cm3. What is the mass of a 42.0 mL sample of this liquid?

Liquid nitrogen boils at -195.8 ∘\circ∘ C. Express the boiling point of liquid nitrogen in ∘\circ∘ F.

What is the volume, in cubic inches, of a brick that is 4.0 in * 2.7 in * 8.0 in?

What is the density of copper if 11.8 cm3 of copper has a mass of 105.2 g?

The Hope diamond weighs 44.0 carats. Determine the volume occupied by the diamond, given that its density is 3.5 g/cm3 at 20 ∘\circ∘ C, and that 1 carat = 0.200 g.

Atoms, Molecules, and Ions

Stoichiometry

Reactions in Aqueous Solution

Gases

Energy Relationships in Chemical Reactions

The Electronic Structure of Atoms

The Periodic Table

Chemical Bonding I: the Covalent Bond

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Introduction to Organic Chemistry

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Thermodynamics

Redox Reactions and Electrochemistry

The Chemistry of Coordination Compounds

Nuclear Chemistry

Organic Polymerssynthetic and Natural

Filters

An organic liquid has a density of 0.8 g/cm³. What is the mass of a 42.0 mL sample of this liquid?

Liquid nitrogen boils at -195.8^$\circ$C. Express the boiling point of liquid nitrogen in ^$\circ$F.

What is the density of copper if 11.8 cm³ of copper has a mass of 105.2 g?

The Hope diamond weighs 44.0 carats. Determine the volume occupied by the diamond, given that its density is 3.5 g/cm³ at 20^$\circ$C, and that 1 carat = 0.200 g.