Question 1

A scientific law summarizes data while a scientific theory explains the data.

Accepted Answer

A) True 
 B)False

Question 2

The density of a certain type of steel is 8.1 g/cm³.What is the mass of a 100.0 cm³ chunk of this steel?

Accepted Answer

A) 0.08100 g 
B) 8.100 g 
C) 12.00 g 
D) 810.0 g 
A) 0.08100 g 
B) 8.100 g 
C) 12.00 g 
D) 810.0 g

Question 3

Which of the following is NOT true for a scientific law?

Accepted Answer

A) It summarizes observed scientific data. 
B) It is often stated in mathematical terms. 
C) It explains observed scientific data. 
D) It is universal and will hold everywhere under the stated conditions. 
A) It summarizes observed scientific data. 
B) It is often stated in mathematical terms. 
C) It explains observed scientific data. 
D) It is universal and will hold everywhere under the stated conditions.

Question 4

How many micrograms are in 20 mg?

Accepted Answer

A) 20,000 μg 
B) 200,000 μg 
C) 2,000,000 μg 
D) 2.0 μg 
A) 20,000 μg 
B) 200,000 μg 
C) 2,000,000 μg 
D) 2.0 μg

Question 5

Which science is primarily concerned with the study of matter and the changes it undergoes?

Accepted Answer

A) biology 
B) chemistry 
C) geology 
D) physics 
A) biology 
B) chemistry 
C) geology 
D) physics

Question 6

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 7

Science is testable,explanatory,and ________.

Accepted Answer

tentative,

Question 8

Which of the following statements about basic research is NOT correct?

Accepted Answer

A) Basic research is conducted primarily in universities and research institutes. 
B) The results of basic research are often used as the basis for technological advances. 
C) Basic research is carried out to develop a particular product. 
D) Basic research is the search for knowledge for its own sake. 
A) Basic research is conducted primarily in universities and research institutes. 
B) The results of basic research are often used as the basis for technological advances. 
C) Basic research is carried out to develop a particular product. 
D) Basic research is the search for knowledge for its own sake.

Question 9

Which of the following is NOT an outcome for companies that use green chemistry?

Accepted Answer

A) They produce less waste. 
B) Their costs are lower. 
C) They no longer have to follow federal pollution guidelines. 
D) They use less energy. 
A) They produce less waste. 
B) Their costs are lower. 
C) They no longer have to follow federal pollution guidelines. 
D) They use less energy.

Question 10

Chemistry is

Accepted Answer

A) the mystical search for the elixir of life. 
B) the study of matter and the changes it undergoes. 
C) speculation about the nature of matter. 
D) none of these 
A) the mystical search for the elixir of life. 
B) the study of matter and the changes it undergoes. 
C) speculation about the nature of matter. 
D) none of these

Question 11

The species represented by CO is

Accepted Answer

A) an atom of cobalt. 
B) an atom made up of carbon and oxygen. 
C) a molecule of cobalt. 
D) a molecule made up of carbon and oxygen. 
A) an atom of cobalt. 
B) an atom made up of carbon and oxygen. 
C) a molecule of cobalt. 
D) a molecule made up of carbon and oxygen.

Question 12

The boiling point of a liquid is 178°C.What is this temperature on the Kelvin scale?

Accepted Answer

A) 451 K 
B) 95 K 
C) 178 K 
D) -95 K 
A) 451 K 
B) 95 K 
C) 178 K 
D) -95 K

Question 13

A student working in the laboratory needs 200.0 g of a liquid chemical whose density is 0.690 g/cm³.What volume of this liquid should he measure?

Accepted Answer

A) 138 cm³ 
B) 69.0 cm³ 
C) 200.cm³ 
D) 290 cm³ 
A) 138 cm³ 
B) 69.0 cm³ 
C) 200.cm³ 
D) 290 cm³

Question 14

Water has a density of 1.00 g/mL.If you put an object that has a density of 0.79 g/mL into water,it will sink to the bottom.

Accepted Answer

A) True 
 B)False

Question 15

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 16

A psychic claims he can bend a spoon using only the power of his mind.However,he says he can do so only when the conditions are right and there must be no one with negative energy present.This claim is falsifiable.

Accepted Answer

A) True 
 B)False

Question 17

________ chemistry is designed to meet the needs of the present generation without compromising the needs of future generations.

Accepted Answer

A) Experimental 
B) Green 
C) Organic 
D) Sustainable 
A) Experimental 
B) Green 
C) Organic 
D) Sustainable

Question 18

Mass is

Accepted Answer

A) the measure of the amount of space that matter occupies. 
B) the measure of the amount of matter. 
C) the measure of the force of gravity on matter. 
D) the measure of the volume of matter. 
A) the measure of the amount of space that matter occupies. 
B) the measure of the amount of matter. 
C) the measure of the force of gravity on matter. 
D) the measure of the volume of matter.

Question 19

After a yellow solid is dissolved in water,the liquid appears to be uniformly yellow throughout.This yellow liquid is best classified as a(n)

Accepted Answer

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

Question 20

The ancient Greek philosophers were probably the first to consider the behavior of matter in an organized way.What is the major distinction between the "Greek philosophers" and "modern scientists"?

Accepted Answer

A) observation 
B) hypotheses 
C) experimentation 
D) logic 
A) observation 
B) hypotheses 
C) experimentation 
D) logic

Exam 1: Chemistry

A scientific law summarizes data while a scientific theory explains the data.

The density of a certain type of steel is 8.1 g/cm³.What is the mass of a 100.0 cm³ chunk of this steel?

Which of the following is NOT true for a scientific law?

How many micrograms are in 20 mg?

Which science is primarily concerned with the study of matter and the changes it undergoes?

How many meters are in 10.0 cm?

Science is testable,explanatory,and ________.

Which of the following statements about basic research is NOT correct?

Which of the following is NOT an outcome for companies that use green chemistry?

Chemistry is

The species represented by CO is

The boiling point of a liquid is 178°C.What is this temperature on the Kelvin scale?

A student working in the laboratory needs 200.0 g of a liquid chemical whose density is 0.690 g/cm³.What volume of this liquid should he measure?

Water has a density of 1.00 g/mL.If you put an object that has a density of 0.79 g/mL into water,it will sink to the bottom.

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

A psychic claims he can bend a spoon using only the power of his mind.However,he says he can do so only when the conditions are right and there must be no one with negative energy present.This claim is falsifiable.

________ chemistry is designed to meet the needs of the present generation without compromising the needs of future generations.

Mass is

After a yellow solid is dissolved in water,the liquid appears to be uniformly yellow throughout.This yellow liquid is best classified as a(n)

The ancient Greek philosophers were probably the first to consider the behavior of matter in an organized way.What is the major distinction between the "Greek philosophers" and "modern scientists"?

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