Question 1

Choose the pure substance from the list below.

Accepted Answer

A)  coffee 
B)  a casserole 
C)  water 
D)  salt water 
E)  apple juice 
A)  coffee 
B)  a casserole 
C)  water 
D)  salt water 
E)  apple juice

Question 2

A recipe requires 1.89 liters of milk for a soup base.How many quarts are needed?

Accepted Answer

A)  1.79 qt. 
B)  2.00 qt. 
C)  1.89 qt. 
D)  4.16 qt. 
E)  0.859 qt. 
A)  1.79 qt. 
B)  2.00 qt. 
C)  1.89 qt. 
D)  4.16 qt. 
E)  0.859 qt.

Question 3

If the walls in a room are 955 square feet in area,and a gallon of paint covers 15 square yards,how many gallons of paint are needed for the room? (3 ft = 1 yd)

Accepted Answer

A)  47 gallons 
B)  21 gallons 
C)  7.1 gallons 
D)  24 gallons 
E)  2.3 gallons 
A)  47 gallons 
B)  21 gallons 
C)  7.1 gallons 
D)  24 gallons 
E)  2.3 gallons

Question 4

Which multiplier does the abbreviation m represent?

Accepted Answer

A)  1 × 103 
B)  1 × 106 
C)  1 × 109 
D)  1 × 10-3 
E)  1 × 10-6 
A)  1 × 103 
B)  1 × 106 
C)  1 × 109 
D)  1 × 10-3 
E)  1 × 10-6

Question 5

Which of the following represents a valid hypothesis?

Accepted Answer

A)  Argon does not react with oxygen. 
B)  Sodium metal reacts violently with water. 
C)  Lead is soft and malleable. 
D)  Nitrogen is a gas at room temperature. 
E)  Metals tend to lose electrons. 
A)  Argon does not react with oxygen. 
B)  Sodium metal reacts violently with water. 
C)  Lead is soft and malleable. 
D)  Nitrogen is a gas at room temperature. 
E)  Metals tend to lose electrons.

Question 6

Identify the smallest volume.

Accepted Answer

A)  2.30 qt 
B)  2.11 L 
C)  1950 mL 
D)  2015 cm3 
E)  124 in3 
A)  2.30 qt 
B)  2.11 L 
C)  1950 mL 
D)  2015 cm3 
E)  124 in3

Question 7

Identify a liquid.

Accepted Answer

A)  nitrogen 
B)  tin 
C)  potassium bromide 
D)  gasoline 
E)  sugar 
A)  nitrogen 
B)  tin 
C)  potassium bromide 
D)  gasoline 
E)  sugar

Question 8

A student performs an experiment to determine the density of a sugar solution.She obtains the following results: 1.81 g/mL,1.81 g/mL,1.80 g/mL,1.81 g/mL.If the actual value for the density of the sugar solution is 1.79 g/mL,which statement below best describes her results?

Accepted Answer

A)  Her results are precise, but not accurate. 
B)  Her results are accurate, but not precise. 
C)  Her results are both precise and accurate 
D)  Her results are neither precise nor accurate. 
E)  It isn't possible to determine with the information given. 
A)  Her results are precise, but not accurate. 
B)  Her results are accurate, but not precise. 
C)  Her results are both precise and accurate 
D)  Her results are neither precise nor accurate. 
E)  It isn't possible to determine with the information given.

Question 9

Without using a calculator,solve the following problem:

Accepted Answer

A)  1 × 108 
B)  1 × 101 
C)  1 × 10-13 
D)  1 × 10-20 
A)  1 × 108 
B)  1 × 101 
C)  1 × 10-13 
D)  1 × 10-20

Question 10

The average distance between nitrogen and oxygen atoms is 115 pm in a compound called nitric oxide.What is this distance in centimeters?

Accepted Answer

A)  1.15 × 10-9 cm 
B)  1.15 × 10-8 cm 
C)  1.15 × 1012 cm 
D)  1.15 × 1016 cm 
A)  1.15 × 10-9 cm 
B)  1.15 × 10-8 cm 
C)  1.15 × 1012 cm 
D)  1.15 × 1016 cm

Question 11

What happens to the density of a sample of iron metal as it is heated from room temperature to 100°C? (This is below the melting point of iron.)

Accepted Answer

Since the mass of the iron sta

Question 12

Read the length of the metal bar with the correct number of significant figures.

Accepted Answer

A)  20 cm 
B)  15 cm 
C)  15.0 cm 
D)  15.00 cm 
E)  15.000 cm 
A)  20 cm 
B)  15 cm 
C)  15.0 cm 
D)  15.00 cm 
E)  15.000 cm

Question 13

5.621 lb = ________ grams.(1 lb = 454 g)

Accepted Answer

A)  2550 × 103 
B)  1.24 × 10-2 
C)  1.28 × 103 
D)  8.00 × 103 
E)  1.70 × 103 
A)  2550 × 103 
B)  1.24 × 10-2 
C)  1.28 × 103 
D)  8.00 × 103 
E)  1.70 × 103

Question 14

Identify a solid.

Accepted Answer

A)  gold 
B)  helium 
C)  water 
D)  neon 
E)  oxygen 
A)  gold 
B)  helium 
C)  water 
D)  neon 
E)  oxygen

Question 15

Convert 90 cm3 to m3.

Accepted Answer

A)  9 × 10-5 m3 
B)  9 × 10-1 m3 
C)  9 × 103 m3 
D)  9 × 107 m3 
A)  9 × 10-5 m3 
B)  9 × 10-1 m3 
C)  9 × 103 m3 
D)  9 × 107 m3

Question 16

Give the composition of hydrogen peroxide.

Accepted Answer

A)  two hydrogen atoms and two oxygen atoms 
B)  one hydrogen molecule and one oxygen atom 
C)  two hydrogen molecules and one oxygen molecule 
D)  one hydrogen atom and two oxygen molecules 
A)  two hydrogen atoms and two oxygen atoms 
B)  one hydrogen molecule and one oxygen atom 
C)  two hydrogen molecules and one oxygen molecule 
D)  one hydrogen atom and two oxygen molecules

Question 17

A banana split is an example of

Accepted Answer

A)  a compound. 
B)  an element. 
C)  a heterogeneous mixture. 
D)  a homogeneous mixture. 
A)  a compound. 
B)  an element. 
C)  a heterogeneous mixture. 
D)  a homogeneous mixture.

Question 18

How many cm3 are contained in 5.83 × 106 mm3?

Accepted Answer

A)  5.83 × 106 cm3 
B)  5.83 × 103 cm3 
C)  5.83 × 10-10cm3 
D)  5.83 × 1018 cm3 
E)  5.83 × 1012 cm3 
A)  5.83 × 106 cm3 
B)  5.83 × 103 cm3 
C)  5.83 × 10-10cm3 
D)  5.83 × 1018 cm3 
E)  5.83 × 1012 cm3

Question 19

How many significant figures are there in the answer for the following problem? 57.5 + 0.9933 + 32 = ?

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
A)  one 
B)  two 
C)  three 
D)  four

Question 20

How many significant figures are in the measurement 5.3 g?

Accepted Answer

A)  1 
B)  4 
C)  3 
D)  2 
E)  5 
A)  1 
B)  4 
C)  3 
D)  2 
E)  5

Exam 1: Matter, measurement, and Problem Solving

Choose the pure substance from the list below.

A recipe requires 1.89 liters of milk for a soup base.How many quarts are needed?

If the walls in a room are 955 square feet in area,and a gallon of paint covers 15 square yards,how many gallons of paint are needed for the room? (3 ft = 1 yd)

Which multiplier does the abbreviation m represent?

Which of the following represents a valid hypothesis?

Identify the smallest volume.

Identify a liquid.

A student performs an experiment to determine the density of a sugar solution.She obtains the following results: 1.81 g/mL,1.81 g/mL,1.80 g/mL,1.81 g/mL.If the actual value for the density of the sugar solution is 1.79 g/mL,which statement below best describes her results?

Without using a calculator,solve the following problem:

The average distance between nitrogen and oxygen atoms is 115 pm in a compound called nitric oxide.What is this distance in centimeters?

What happens to the density of a sample of iron metal as it is heated from room temperature to 100°C? (This is below the melting point of iron.)

Read the length of the metal bar with the correct number of significant figures.

5.621 lb = ________ grams.(1 lb = 454 g)

Identify a solid.

Convert 90 cm3 to m3.

Give the composition of hydrogen peroxide.

A banana split is an example of

How many cm3 are contained in 5.83 × 106 mm3?

How many significant figures are there in the answer for the following problem? 57.5 + 0.9933 + 32 = ?

How many significant figures are in the measurement 5.3 g?

Atoms and Elements

Molecules,compounds,and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes,valence Bond Theory,

Liquids,solids,and Intermolecular Forces

Solids and Modern Materials

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

Convert 90 cm³ to m³.

How many cm³ are contained in 5.83 × 10⁶mm³?