Question 1

The negative impact of the overuse of pesticides on plant and animal life is an example a topic in the book by ________.

Accepted Answer

The answer of The negative impact of the overuse of...

Question 2

What is the chemical symbol for sodium?

Accepted Answer

A)  Na 
B)  K 
C)  S 
D)  Sm 
A)  Na 
B)  K 
C)  S 
D)  Sm

Question 3

The physical state that retains both shape and volume is

Accepted Answer

A)  solid. 
B)  liquid. 
C)  gas. 
D)  element. 
A)  solid. 
B)  liquid. 
C)  gas. 
D)  element.

Question 4

What is the density of a liquid that has a volume of 10.0 mL and a mass of 22.00 grams?

Accepted Answer

A)  0.220 g/mL 
B)  0.460 g/mL 
C)  2.20 g/mL 
D)  4.60 g/mL 
A)  0.220 g/mL 
B)  0.460 g/mL 
C)  2.20 g/mL 
D)  4.60 g/mL

Question 5

Refined white table sugar is usually derived from either sugar cane or sugar beets. Irrespective of the source of table sugar, after refining it always has the same composition of carbon, hydrogen and oxygen. Sugar is best classified as which one of the following?

Accepted Answer

A)  ideal mixture 
B)  element 
C)  compound 
D)  mixture 
A)  ideal mixture 
B)  element 
C)  compound 
D)  mixture

Question 6

The freezing point of water on the Kelvin temperature scale is

Accepted Answer

A)  0 K. 
B)  100 K. 
C)  273 K. 
D)  373 K. 
A)  0 K. 
B)  100 K. 
C)  273 K. 
D)  373 K.

Question 7

A tablet contains 325.0 mg of the active ingredient. This mass may also be expressed as

Accepted Answer

A)  325.0 μg. 
B)  0.0003250 g. 
C)  0.3250 g. 
D)  32.50 μg. 
A)  325.0 μg. 
B)  0.0003250 g. 
C)  0.3250 g. 
D)  32.50 μg.

Question 8

The freezing point of water on the Celsius temperature scale is

Accepted Answer

A)  -32°C. 
B)  0°C. 
C)  100°C. 
D)  212°C. 
A)  -32°C. 
B)  0°C. 
C)  100°C. 
D)  212°C.

Question 9

The energy content of foods is stated on food labels in Calories. The Calorie is equal to

Accepted Answer

A)  1000 calories. 
B)  1000 kilocalories. 
C)  1000°C. 
D)  1000 joules. 
A)  1000 calories. 
B)  1000 kilocalories. 
C)  1000°C. 
D)  1000 joules.

Question 10

The prefix centi means ________.

Accepted Answer

A)  10-3 
B)  10-2 
C)  10-1 
D)  102 
A)  10-3 
B)  10-2 
C)  10-1 
D)  102

Question 11

On Mars, gravity is one-third that on Earth. What would be the mass on Mars of a person who has a mass of 90 kilograms (kg) on Earth?

Accepted Answer

A)  30 kg 
B)  270 kg 
C)  90 kg 
D)  180 kg 
A)  30 kg 
B)  270 kg 
C)  90 kg 
D)  180 kg

Question 12

Science is testable, explanatory, and ________.

Accepted Answer

tentative,

Question 13

What is the name of the element with the symbol Au?

Accepted Answer

A)  silver 
B)  gold 
C)  plutonium 
D)  nickel 
A)  silver 
B)  gold 
C)  plutonium 
D)  nickel

Question 14

A brief statement summarizing many observations of a physical phenomenon is called a

Accepted Answer

A)  scientific theory. 
B)  hypothesis. 
C)  fact. 
D)  scientific law. 
A)  scientific theory. 
B)  hypothesis. 
C)  fact. 
D)  scientific law.

Question 15

The knowledge gained from basic research has rarely been applied to improving our lives.

Accepted Answer

A) True 
 B)False

Question 16

Science is tentative, explanatory, and

Accepted Answer

A)  absolute. 
B)  testable. 
C)  unpredictable. 
D)  mystical. 
A)  absolute. 
B)  testable. 
C)  unpredictable. 
D)  mystical.

Question 17

The density of lead is 11.3 g/cm3. What mass of lead is required to make a 1.00 cm3 fishing sinker?

Accepted Answer

A)  1.00 g 
B)  1.13 g 
C)  11.3 g 
D)  113 g 
A)  1.00 g 
B)  1.13 g 
C)  11.3 g 
D)  113 g

Question 18

The desirability quotient, DQ, is equal to risks/benefits.

Accepted Answer

A) True 
 B)False

Question 19

How many meters are in 10.0 cm?

Accepted Answer

A)  0.0100 
B)  0.100 
C)  1.00 
D)  1,000 
A)  0.0100 
B)  0.100 
C)  1.00 
D)  1,000

Question 20

A molecule

Accepted Answer

A)  is a charged atom. 
B)  consists of one proton. 
C)  is the smallest characteristic part of a compound. 
D)  consists of a mixture of two ions. 
A)  is a charged atom. 
B)  consists of one proton. 
C)  is the smallest characteristic part of a compound. 
D)  consists of a mixture of two ions.

Exam 1: Chemistry

The negative impact of the overuse of pesticides on plant and animal life is an example a topic in the book by ________.

What is the chemical symbol for sodium?

The physical state that retains both shape and volume is

What is the density of a liquid that has a volume of 10.0 mL and a mass of 22.00 grams?

Refined white table sugar is usually derived from either sugar cane or sugar beets. Irrespective of the source of table sugar, after refining it always has the same composition of carbon, hydrogen and oxygen. Sugar is best classified as which one of the following?

The freezing point of water on the Kelvin temperature scale is

A tablet contains 325.0 mg of the active ingredient. This mass may also be expressed as

The freezing point of water on the Celsius temperature scale is

The energy content of foods is stated on food labels in Calories. The Calorie is equal to

The prefix centi means ________.

On Mars, gravity is one-third that on Earth. What would be the mass on Mars of a person who has a mass of 90 kilograms (kg) on Earth?

Science is testable, explanatory, and ________.

What is the name of the element with the symbol Au?

A brief statement summarizing many observations of a physical phenomenon is called a

The knowledge gained from basic research has rarely been applied to improving our lives.

Science is tentative, explanatory, and

The density of lead is 11.3 g/cm3. What mass of lead is required to make a 1.00 cm3 fishing sinker?

The desirability quotient, DQ, is equal to risks/benefits.

How many meters are in 10.0 cm?

A molecule

Atoms

Atomic Structure

Chemical Bonds

Chemical Accounting

Gases, Liquids, Solids, and Intermolecular Forces

Acids and Bases

Oxidation and Reduction

Organic Chemistry

Polymers

Nuclear Chemistry

Chemistry of the Earth

Air

Water

Energy

Biochemistry

Food

Drugs

Fitness and Health

Chemistry Down on the Farm

Household Chemicals

Poisons

Filters

The density of lead is 11.3 g/cm³. What mass of lead is required to make a 1.00 cm³ fishing sinker?