Question 1

What is the difference between basic research and applied research? Give an example of each.

Accepted Answer

Basic research and applied research are

Question 2

The density of gold is 19.3 g/cm3. What is the volume of a 50.00 g gold ingot?

Accepted Answer

A)  0.5000 cm3 
B)  2.593 cm3 
C)  50.00 cm3 
D)  965.0 cm3 
A)  0.5000 cm3 
B)  2.593 cm3 
C)  50.00 cm3 
D)  965.0 cm3

Question 3

What is the chemical symbol for chromium?

Accepted Answer

A)  C 
B)  Cr 
C)  Ch 
D)  Cm 
A)  C 
B)  Cr 
C)  Ch 
D)  Cm

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

The acronym FLaReS is a mnemonic that helps us remember the rules that can be used to test a claim. Which of the following is NOT one of these rules?

Accepted Answer

A)  falsifiability 
B)  logic 
C)  replicability 
D)  societal acceptance 
A)  falsifiability 
B)  logic 
C)  replicability 
D)  societal acceptance

Question 6

Chemist A claims that a new compound will inhibit the growth of a virulent strain of bacteria. When Chemist B from a different laboratory tests the compound against the same bacterial strain, the bacteria grow at their normal rate. Which of the following statements best describes what has happened?

Accepted Answer

A)  The claim is correct, because the test has been replicated. 
B)  The claim is incorrect, because the test has been replicated. 
C)  The claim is incorrect, because the test has not been replicated. 
D)  The claim is correct, because the data is not falsifiable. 
A)  The claim is correct, because the test has been replicated. 
B)  The claim is incorrect, because the test has been replicated. 
C)  The claim is incorrect, because the test has not been replicated. 
D)  The claim is correct, because the data is not falsifiable.

Question 7

The prefix milli means ________.

Accepted Answer

A)  1/1,000,000 
B)  1/1,000 
C)  1/10 
D)  1,000 
A)  1/1,000,000 
B)  1/1,000 
C)  1/10 
D)  1,000

Question 8

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 9

Science does not prove a theory or hypothesis to be true. It can only prove something false.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following was NOT a result of alchemy?

Accepted Answer

A)  The philosopher's stone was successfully used to change base metals, such as lead, into gold. 
B)  Many new chemicals were discovered. 
C)  Alchemists developed techniques such as distillation and extraction that are still used today. 
D)  Many modern chemists inherited an interest in health and medicines from the alchemists. 
A)  The philosopher's stone was successfully used to change base metals, such as lead, into gold. 
B)  Many new chemicals were discovered. 
C)  Alchemists developed techniques such as distillation and extraction that are still used today. 
D)  Many modern chemists inherited an interest in health and medicines from the alchemists.

Question 11

The purification of water by distillation is a(n) ________ process.

Accepted Answer

The answer of The purification of water by distillation is...

Question 12

The symbol for the prefix mega is ________.

Accepted Answer

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

Question 13

Mass is a measure of the amount of matter in an object.

Accepted Answer

A) True 
 B)False

Question 14

One of the hallmarks of science is the ability to think ________.

Accepted Answer

A)  often 
B)  constantly 
C)  critically 
D)  independently 
A)  often 
B)  constantly 
C)  critically 
D)  independently

Question 15

The technology of smelting metals into ores was performed long before the science of metallurgy evolved.

Accepted Answer

A) True 
 B)False

Question 16

Density is equal to volume divided by mass.

Accepted Answer

A) True 
 B)False

Question 17

Composition and structure are both terms used to describe the kinds of atoms that are present in a substance.

Accepted Answer

A) True 
 B)False

Question 18

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 19

Heat will always flow from a warmer object to a cooler object.

Accepted Answer

A) True 
 B)False

Question 20

Molasses is a by-product of the refining of sugar from sugar cane. The specific composition of molasses varies depending upon the source of the sugar cane. Which one of the following is the best classification of molasses?

Accepted Answer

A)  pure substance 
B)  element 
C)  compound 
D)  mixture 
A)  pure substance 
B)  element 
C)  compound 
D)  mixture

Exam 1: Chemistry

What is the difference between basic research and applied research? Give an example of each.

The density of gold is 19.3 g/cm3. What is the volume of a 50.00 g gold ingot?

What is the chemical symbol for chromium?

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

The acronym FLaReS is a mnemonic that helps us remember the rules that can be used to test a claim. Which of the following is NOT one of these rules?

Chemist A claims that a new compound will inhibit the growth of a virulent strain of bacteria. When Chemist B from a different laboratory tests the compound against the same bacterial strain, the bacteria grow at their normal rate. Which of the following statements best describes what has happened?

The prefix milli means ________.

How many micrograms are in 20 mg?

Science does not prove a theory or hypothesis to be true. It can only prove something false.

Which of the following was NOT a result of alchemy?

The purification of water by distillation is a(n) ________ process.

The symbol for the prefix mega is ________.

Mass is a measure of the amount of matter in an object.

One of the hallmarks of science is the ability to think ________.

The technology of smelting metals into ores was performed long before the science of metallurgy evolved.

Density is equal to volume divided by mass.

Composition and structure are both terms used to describe the kinds of atoms that are present in a substance.

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

Heat will always flow from a warmer object to a cooler object.

Molasses is a by-product of the refining of sugar from sugar cane. The specific composition of molasses varies depending upon the source of the sugar cane. Which one of the following is the best classification of molasses?

Atoms

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Chemical Bonds

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The density of gold is 19.3 g/cm³. What is the volume of a 50.00 g gold ingot?