Question 1

Chemistry is important not only as a separate science but also because it is fundamental to other sciences.

Accepted Answer

A) True 
 B)False

Question 2

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 3

The prefix micro means ________.

Accepted Answer

A) 0.000001 
B) 0.001 
C) 100 
D) 1000 
A) 0.000001 
B) 0.001 
C) 100 
D) 1000

Question 4

Which of the following variables would be the easiest to control?

Accepted Answer

A) atmospheric air pressure 
B) a teenager's diet 
C) amount of antibiotic added to a bacterial culture 
D) political opinion 
A) atmospheric air pressure 
B) a teenager's diet 
C) amount of antibiotic added to a bacterial culture 
D) political opinion

Question 5

The symbol for the prefix micro is ________.

Accepted Answer

A) M 
B) m 
C) mm 
D) μ 
A) M 
B) m 
C) mm 
D) μ

Question 6

A solution is another name for a(n)

Accepted Answer

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

Question 7

It is possible to prove that an hypothesis is absolutely true.

Accepted Answer

A) True 
 B)False

Question 8

Organic foods do not contain chemicals.

Accepted Answer

A) True 
 B)False

Question 9

Green chemistry uses materials and methods that are designed to prevent or reduce pollution.

Accepted Answer

A) True 
 B)False

Question 10

Use the automobile and automobile travel to explain risk-benefit analysis.

Accepted Answer

Risk-benefit analysis is a decision-maki

Question 11

The boiling point of water on the Celsius temperature scale is

Accepted Answer

A) 100°C. 
B) 212°C. 
C) 273°C. 
D) 373°C. 
A) 100°C. 
B) 212°C. 
C) 273°C. 
D) 373°C.

Question 12

The prefix mega means ________.

Accepted Answer

A) 10⁻⁶ 
B) 10⁻³ 
C) 10³ 
D) 10⁶ 
A) 10⁻⁶ 
B) 10⁻³ 
C) 10³ 
D) 10⁶

Question 13

A substance that cannot be broken down by chemical means into simpler substances is called a(n)

Accepted Answer

A) solid. 
B) element. 
C) compound. 
D) mixture. 
A) solid. 
B) element. 
C) compound. 
D) mixture.

Question 14

All clothing contains chemicals.

Accepted Answer

A) True 
 B)False

Question 15

The prefix nano means ________.

Accepted Answer

A) 10³ 
B) 10⁻⁹ 
C) 10⁶ 
D) 10⁹ 
A) 10³ 
B) 10⁻⁹ 
C) 10⁶ 
D) 10⁹

Question 16

The SI unit for temperature is the

Accepted Answer

A) Calorie. 
B) Celsius. 
C) Fahrenheit. 
D) Kelvin. 
A) Calorie. 
B) Celsius. 
C) Fahrenheit. 
D) Kelvin.

Question 17

Most molecules have dimensions in the nanometer (nm)or ________ range.

Accepted Answer

A) centimeter (cm) 
B) millimeter (mm) 
C) kilometer (km) 
D) picometer (pm) 
A) centimeter (cm) 
B) millimeter (mm) 
C) kilometer (km) 
D) picometer (pm)

Question 18

Which of these is a chemical change?

Accepted Answer

A) The hair stylist cuts your hair. 
B) Bleaching powder dissolves in water. 
C) Silkworms convert mulberry leaves into silk. 
D) Wool is spun into yarn. 
A) The hair stylist cuts your hair. 
B) Bleaching powder dissolves in water. 
C) Silkworms convert mulberry leaves into silk. 
D) Wool is spun into yarn.

Question 19

Matter is a measure of the amount of mass in an object.

Accepted Answer

A) True 
 B)False

Question 20

A chemist is hired by a major petroleum company to do research into developing a gasoline mixture that burns more efficiently in automobile engines.This is best described as ________ research.

Accepted Answer

The answer of A chemist is hired by a major...

Exam 1: Chemistry

Chemistry is important not only as a separate science but also because it is fundamental to other sciences.

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

The prefix micro means ________.

Which of the following variables would be the easiest to control?

The symbol for the prefix micro is ________.

A solution is another name for a(n)

It is possible to prove that an hypothesis is absolutely true.

Organic foods do not contain chemicals.

Green chemistry uses materials and methods that are designed to prevent or reduce pollution.

Use the automobile and automobile travel to explain risk-benefit analysis.

The boiling point of water on the Celsius temperature scale is

The prefix mega means ________.

A substance that cannot be broken down by chemical means into simpler substances is called a(n)

All clothing contains chemicals.

The prefix nano means ________.

The SI unit for temperature is the

Most molecules have dimensions in the nanometer (nm)or ________ range.

Which of these is a chemical change?

Matter is a measure of the amount of mass in an object.

A chemist is hired by a major petroleum company to do research into developing a gasoline mixture that burns more efficiently in automobile engines.This is best described as ________ research.

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