Question 1

Classify the following as an element, a compound, or a mixture: Table salt (non-iodized).

Accepted Answer

The answer of Classify the following as an element, a...

Question 2

Classify the following as an intensive or an extensive property: Melting point

Accepted Answer

The answer of Classify the following as an intensive or...

Question 3

Classify the following as either a physical or a chemical property: Newspaper burns.

Accepted Answer

The answer of Classify the following as either a physical...

Question 4

Convert 4.89 mm to µm.

Accepted Answer

A) 4.89 x 10-6 µm 
B) 4.89 x 10-3 µm 
C) 4.89 x 103 µm 
D) 4.89 x 106 µm 
E) 4.89 x 109 µm 
A) 4.89 x 10-6 µm 
B) 4.89 x 10-3 µm 
C) 4.89 x 103 µm 
D) 4.89 x 106 µm 
E) 4.89 x 109 µm

Question 5

Give the correct number of significant figures and units to the problem below 5.67 m/ 2.04 m2 =

Accepted Answer

A) 2.78 m3 
B) 2.78 m2 
C) 2.78 m 
D) 2.78 
E) 2.78 m-1 
A) 2.78 m3 
B) 2.78 m2 
C) 2.78 m 
D) 2.78 
E) 2.78 m-1

Question 6

What is the area, in square centimeters, of an 8.5 inch by 11 inch sheet of paper?

Accepted Answer

A) 94 cm2 
B) 240 cm2 
C) 420 cm2 
D) 6.0 × 102 cm2 
E) 1.2 × 104 cm2 
A) 94 cm2 
B) 240 cm2 
C) 420 cm2 
D) 6.0 × 102 cm2 
E) 1.2 × 104 cm2

Question 7

Convert 4.6 km to mm.

Accepted Answer

A) 4.6 x 106 mm 
B) 4.6 x 103 mm 
C) 4.6 x 10-6 mm 
D) 4.6 x 10-2 mm 
E) 4.6 x 104 mm 
A) 4.6 x 106 mm 
B) 4.6 x 103 mm 
C) 4.6 x 10-6 mm 
D) 4.6 x 10-2 mm 
E) 4.6 x 104 mm

Question 8

Iron has a density of 7.87 g/cm3.What mass of iron would be required to cover a football playing surface of 120 yds × 60 yds to a depth of 1.0 mm? (1 inch = 2.54 cm; 1 lb = 453.6 g)

Accepted Answer

A) 6.4 × 103 lb 
B) 6.4 × 104 lb 
C) 1.0 × 105 lb 
D) 4.7 × 107 lb 
E) 4.7 × 108 lb 
A) 6.4 × 103 lb 
B) 6.4 × 104 lb 
C) 1.0 × 105 lb 
D) 4.7 × 107 lb 
E) 4.7 × 108 lb

Question 9

What are the common names for the solid, liquid, and gaseous states of water?

Accepted Answer

Ice, water

Question 10

Give the correct number of significant figures to the problem below. 6.2 x 10-13 x 5.68 x 108 =

Accepted Answer

A) 3.5 x 10-13 
B) 3.5 x 10-5 
C) 3.5 x 10-104 
D) 3.5 x 10-4 
E) 3.5 x 10-21 
A) 3.5 x 10-13 
B) 3.5 x 10-5 
C) 3.5 x 10-104 
D) 3.5 x 10-4 
E) 3.5 x 10-21

Question 11

The number 1.050 × 109 has how many significant figures?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 9 
E) 13 
A) 2 
B) 3 
C) 4 
D) 9 
E) 13

Question 12

Bromine is a red liquid at 25°C.Its density is 3.12 g/cm3.What is the volume of 28.1 g of liquid bromine?

Accepted Answer

A) 87.7 cm3 
B) 0.111 cm3 . 
C) 9.01 cm3 
D) 28.1 cm3 
E) None of the above 
A) 87.7 cm3 
B) 0.111 cm3 . 
C) 9.01 cm3 
D) 28.1 cm3 
E) None of the above

Question 13

If a car has an EPA mileage rating of 30 miles per gallon, what is this rating in kilometers per liter? (1 L = 1.06 qt)

Accepted Answer

A) 200 km/L 
B) 180 km/L 
C) 70 km/L 
D) 13 km/L 
E) 11 km/L 
A) 200 km/L 
B) 180 km/L 
C) 70 km/L 
D) 13 km/L 
E) 11 km/L

Question 14

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°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

Question 15

The density of lead is 11.4 g/cm3 at 25°C.Calculate the volume occupied by 25.0 g of lead.

Accepted Answer

A) 2.19 cm3 
B) 0.456 cm3 
C) 285 cm3 
D) 1.24 cm3 
E) 6.05 cm3 
A) 2.19 cm3 
B) 0.456 cm3 
C) 285 cm3 
D) 1.24 cm3 
E) 6.05 cm3

Question 16

How many significant figures does the result of the following operation contain? 8.52010 × 7.90

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
E) 6 
A) 2 
B) 3 
C) 4 
D) 5 
E) 6

Question 17

Identify the following as a physical or chemical change: Ripening of fruit.

Accepted Answer

The answer of Identify the following as a physical or...

Question 18

A piece of metal with a mass of 611 g is placed into a graduated cylinder that contains 25.1 mL of water, raising the water level to 56.7 mL.What is the density of the metal?

Accepted Answer

A) 2.70 g/cm3 
B) 7.13 g/cm3 
C) 8.96 g/cm3 
D) 10.5 g/cm3 
E) 19.3 g/cm3 
A) 2.70 g/cm3 
B) 7.13 g/cm3 
C) 8.96 g/cm3 
D) 10.5 g/cm3 
E) 19.3 g/cm3

Question 19

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

Accepted Answer

Question 20

Complete the following sentence.A hypothesis is

Accepted Answer

A) a tentative explanation for a set of observations that can be tested by further experimentation. 
B) a statement describing a relationship between phenomena that is always the same under the same conditions. 
C) a unifying principle that explains a body of facts and relations. 
D) a model used to visualize the invisible. 
A) a tentative explanation for a set of observations that can be tested by further experimentation. 
B) a statement describing a relationship between phenomena that is always the same under the same conditions. 
C) a unifying principle that explains a body of facts and relations. 
D) a model used to visualize the invisible.

Exam 1: Chemistry: the Study of Change

Classify the following as an element, a compound, or a mixture: Table salt (non-iodized).

Classify the following as an intensive or an extensive property: Melting point

Classify the following as either a physical or a chemical property: Newspaper burns.

Convert 4.89 mm to µm.

Give the correct number of significant figures and units to the problem below 5.67 m/ 2.04 m2 =

What is the area, in square centimeters, of an 8.5 inch by 11 inch sheet of paper?

Convert 4.6 km to mm.

Iron has a density of 7.87 g/cm3.What mass of iron would be required to cover a football playing surface of 120 yds × 60 yds to a depth of 1.0 mm? (1 inch = 2.54 cm; 1 lb = 453.6 g)

What are the common names for the solid, liquid, and gaseous states of water?

Give the correct number of significant figures to the problem below. 6.2 x 10-13 x 5.68 x 108 =

The number 1.050 × 109 has how many significant figures?

Bromine is a red liquid at 25°C.Its density is 3.12 g/cm3.What is the volume of 28.1 g of liquid bromine?

If a car has an EPA mileage rating of 30 miles per gallon, what is this rating in kilometers per liter? (1 L = 1.06 qt)

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°C, and that 1 carat = 0.200 g.

The density of lead is 11.4 g/cm3 at 25°C.Calculate the volume occupied by 25.0 g of lead.

How many significant figures does the result of the following operation contain? 8.52010 × 7.90

Identify the following as a physical or chemical change: Ripening of fruit.

A piece of metal with a mass of 611 g is placed into a graduated cylinder that contains 25.1 mL of water, raising the water level to 56.7 mL.What is the density of the metal?

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

Complete the following sentence.A hypothesis is

Atoms, Molecules, and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Gases

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy Free Energy and Equilibrium

Electrochemistry

Nuclear Chemistry

Chemistry in the Atmosphere

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metal Chemistry and Coordination Compounds

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

Give the correct number of significant figures and units to the problem below 5.67 m/ 2.04 m² =

Iron has a density of 7.87 g/cm³.What mass of iron would be required to cover a football playing surface of 120 yds × 60 yds to a depth of 1.0 mm? (1 inch = 2.54 cm; 1 lb = 453.6 g)

Give the correct number of significant figures to the problem below. 6.2 x 10^-13 x 5.68 x 10⁸ =

The number 1.050 × 10⁹ has how many significant figures?

Bromine is a red liquid at 25°C.Its density is 3.12 g/cm³.What is the volume of 28.1 g of liquid bromine?

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°C, and that 1 carat = 0.200 g.

The density of lead is 11.4 g/cm³ at 25°C.Calculate the volume occupied by 25.0 g of lead.

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