Question 1

How many significant figures should be retained in the result of the following calculation?

Accepted Answer

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

Question 2

Which of the following are states of matter?

Accepted Answer

A) solid 
B) suspension 
C) solution 
D) precipitate 
E) all of the above 
A) solid 
B) suspension 
C) solution 
D) precipitate 
E) all of the above A

Question 3

A 35.0 mL sample of a liquid weighs 27.2 g.What is the density of the liquid?

Accepted Answer

A) 62.2 g/mL 
B) 7.80 g/mL 
C) 1.29 g/mL 
D) 0.952 g/mL 
E) 0.777 g/mL 
A) 62.2 g/mL 
B) 7.80 g/mL 
C) 1.29 g/mL 
D) 0.952 g/mL 
E) 0.777 g/mL E

Question 4

Which best describes the size and shape of a sample of gas?

Accepted Answer

A) It has definite volume and definite shape. 
B) It has definite volume,but shape is determined by the container. 
C) Its volume is determined by the container,but it has a definite shape. 
D) Volume and shape are both determined by the container. 
E) Volume and shape cannot be described. 
A) It has definite volume and definite shape. 
B) It has definite volume,but shape is determined by the container. 
C) Its volume is determined by the container,but it has a definite shape. 
D) Volume and shape are both determined by the container. 
E) Volume and shape cannot be described.

Question 5

68°C is the same as

Accepted Answer

A) 341 K. 
B) 321 K. 
C) 285 K. 
D) 205 K. 
E) 158 K. 
A) 341 K. 
B) 321 K. 
C) 285 K. 
D) 205 K. 
E) 158 K.

Question 6

All of the following are examples of matter except

Accepted Answer

A) heat. 
B) air. 
C) water. 
D) salt. 
E) plants. 
A) heat. 
B) air. 
C) water. 
D) salt. 
E) plants.

Question 7

If gasoline sells for 95.4 cents per liter,what is its cost on a per gallon basis?
1 L = 1.06 qt

Accepted Answer

A) $3.60 
B) $4.04 
C) $3.82 
D) $404.50 
A) $3.60 
B) $4.04 
C) $3.82 
D) $404.50

Question 8

Barium sulfate is described as a white crystalline solid that melts at 1580°C and decomposes at 1600°C.At a temperature of 500°C,you would expect a sample of barium sulfate to be a

Accepted Answer

A) colorless liquid. 
B) white crystalline solid. 
C) yellow liquid. 
D) white cloud of vapor. 
E) form that cannot be determined. 
A) colorless liquid. 
B) white crystalline solid. 
C) yellow liquid. 
D) white cloud of vapor. 
E) form that cannot be determined.

Question 9

A student weighed a solid sample.The units for this measurement are most likely to be recorded as

Accepted Answer

A) grams. 
B) grams per cubic centimeter. 
C) Kelvins. 
D) liters. 
E) meters. 
A) grams. 
B) grams per cubic centimeter. 
C) Kelvins. 
D) liters. 
E) meters.

Question 10

What is the numerical value of  
?

Accepted Answer

A) 1.2 
B) 1.2 × 1011 
C) 1.2 × 107 
D) 1.2 × 105 
E) 1.2 × 103 
A) 1.2 
B) 1.2 × 1011 
C) 1.2 × 107 
D) 1.2 × 105 
E) 1.2 × 103

Question 11

The most common element by mass percent in the human body is

Accepted Answer

A) carbon. 
B) hydrogen. 
C) oxygen 
D) sulfur. 
E) phosphorus. 
A) carbon. 
B) hydrogen. 
C) oxygen 
D) sulfur. 
E) phosphorus.

Question 12

Which value is closest to the mass of a 2-pound box of laundry detergent?

Accepted Answer

A) 200 g 
B) 2.0 × 10-4 cg 
C) 9 × 109 mg 
D) 1 kg 
E) 4.5 × 103 ng 
A) 200 g 
B) 2.0 × 10-4 cg 
C) 9 × 109 mg 
D) 1 kg 
E) 4.5 × 103 ng

Question 13

What is the volume of a gold nugget that weighs 2.20 kg? The density of gold is 19g/cm3.

Accepted Answer

A) 8.60 × 103 cm3 
B) 116 cm3 
C) 11.6 cm3 
D) 8.60 cm3 
E) 0.116 cm3 
A) 8.60 × 103 cm3 
B) 116 cm3 
C) 11.6 cm3 
D) 8.60 cm3 
E) 0.116 cm3

Question 14

Which chemical symbol represents a non-metal?

Accepted Answer

A) Al 
B) B 
C) Ga 
D) Si 
E) P 
A) Al 
B) B 
C) Ga 
D) Si 
E) P

Question 15

How many ng are there in 5.2 mg?

Accepted Answer

A) 1.9 × 102 ng 
B) 1.9 × 105 ng 
C) 5.2 × 103 ng 
D) 5.2 × 106 ng 
E) 5.2 × 109 ng 
A) 1.9 × 102 ng 
B) 1.9 × 105 ng 
C) 5.2 × 103 ng 
D) 5.2 × 106 ng 
E) 5.2 × 109 ng

Question 16

The numerical value for (5.6 × 104)÷ (7.89 × 102)is equal to,with the proper number of significant figures:

Accepted Answer

A) 70.976 
B) 71 
C) 7.098 × 101 
D) 71.0 
E) 70.98 
A) 70.976 
B) 71 
C) 7.098 × 101 
D) 71.0 
E) 70.98

Question 17

What temperature is 325 K on the Celsius scale?

Accepted Answer

A) 52°C 
B) 126°C 
C) 344°C 
D) 598°C 
E) 617°C 
A) 52°C 
B) 126°C 
C) 344°C 
D) 598°C 
E) 617°C

Question 18

Malic acid,a compound used to increase the acidity of fruit-flavored products,freezes at 128°C and boils at 150°C.What is its phase at 100°C,a temperature used in food processing applications?

Accepted Answer

A) solid 
B) liquid 
C) gas 
D) a mixture of solid and liquid 
E) a mixture of liquid and gas 
A) solid 
B) liquid 
C) gas 
D) a mixture of solid and liquid 
E) a mixture of liquid and gas

Question 19

Which of the following is a pure substance?

Accepted Answer

A) root beer 
B) bleach 
C) eggs 
D) gasoline 
E) neon 
A) root beer 
B) bleach 
C) eggs 
D) gasoline 
E) neon

Question 20

Which measurement represents the smallest quantity?

Accepted Answer

A) 2950 ng 
B) 2.95 × 10-4 g 
C) 2.95 × 103 μg 
D) 2.95 × 10-6 kg 
E) 29.5 mg 
A) 2950 ng 
B) 2.95 × 10-4 g 
C) 2.95 × 103 μg 
D) 2.95 × 10-6 kg 
E) 29.5 mg

Exam 1: Matter and Measurements

How many significant figures should be retained in the result of the following calculation?

Which of the following are states of matter?

A 35.0 mL sample of a liquid weighs 27.2 g.What is the density of the liquid?

Which best describes the size and shape of a sample of gas?

68°C is the same as

All of the following are examples of matter except

If gasoline sells for 95.4 cents per liter,what is its cost on a per gallon basis? 1 L = 1.06 qt

Barium sulfate is described as a white crystalline solid that melts at 1580°C and decomposes at 1600°C.At a temperature of 500°C,you would expect a sample of barium sulfate to be a

A student weighed a solid sample.The units for this measurement are most likely to be recorded as

What is the numerical value of ?

The most common element by mass percent in the human body is

Which value is closest to the mass of a 2-pound box of laundry detergent?

What is the volume of a gold nugget that weighs 2.20 kg? The density of gold is 19g/cm3.

Which chemical symbol represents a non-metal?

How many ng are there in 5.2 mg?

The numerical value for (5.6 × 104)÷ (7.89 × 102)is equal to,with the proper number of significant figures:

What temperature is 325 K on the Celsius scale?

Malic acid,a compound used to increase the acidity of fruit-flavored products,freezes at 128°C and boils at 150°C.What is its phase at 100°C,a temperature used in food processing applications?

Which of the following is a pure substance?

Which measurement represents the smallest quantity?

Atoms and the Periodic Table

Ionic Compounds

Molecular Compounds

Classification and Balancing of Chemical Reactions

Chemical Reactions: Mole and Mass Relationships

Chemical Reactions: Energy, rates, and Equilibrium

Gases, liquids, and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Chemistry: Alkanes

Alkenes, alkynes, and Aromatic Compounds

Some Compounds With Oxygen, sulfur, or a Halogen

Amines

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Amino Acids and Proteins

Enzymes and Vitamins

The Generation of Biochemical Energy

Carbohydrates

Carbohydrate Metabolism

Lipids

Lipid Metabolism

Nucleic Acids and Protein Synthesis

Genomics

Protein and Amino Acid Metabolism

Chemical Messengers: Hormones, neurotransmitters, and Drugs

Body Fluids

Filters

What is the volume of a gold nugget that weighs 2.20 kg? The density of gold is 19g/cm³.

The numerical value for (5.6 × 10⁴)÷ (7.89 × 10²)is equal to,with the proper number of significant figures: