Question 1

A mixture of sand and salt is a(n)

Accepted Answer

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

Question 2

Which of the following statements about the size of temperature units is NOT true?

Accepted Answer

A)  1 Celsius degree is equal to 1 kelvin. 
B)  1 Celsius degree is bigger than 1 kelvin. 
C)  1 kelvin is bigger than 1 Fahrenheit degree. 
D)  1 Celsius degree is bigger than 1 Fahrenheit degree. 
A)  1 Celsius degree is equal to 1 kelvin. 
B)  1 Celsius degree is bigger than 1 kelvin. 
C)  1 kelvin is bigger than 1 Fahrenheit degree. 
D)  1 Celsius degree is bigger than 1 Fahrenheit degree.

Question 3

Mass is a better measure of the amount of matter than weight is because

Accepted Answer

A)  mass is dependent upon location. 
B)  mass is independent of location. 
C)  mass is easier to measure. 
D)  mass is measured using the metric system. 
A)  mass is dependent upon location. 
B)  mass is independent of location. 
C)  mass is easier to measure. 
D)  mass is measured using the metric system.

Question 4

The prefix milli means ________.

Accepted Answer

A)  0.000001 
B)  0.001 
C)  0.1 
D)  1000 
A)  0.000001 
B)  0.001 
C)  0.1 
D)  1000

Question 5

What is green chemistry? Give an example.

Accepted Answer

Green chemistry is the design of chemica

Question 6

John eats shrimp for the first time and develops chills and a fever that evening. He can therefore conclude that eating shrimp was the cause of his fever and chills.

Accepted Answer

A) True 
 B)False

Question 7

Which developed first?

Accepted Answer

A)  technology 
B)  chemistry 
C)  alchemy 
D)  natural philosophy 
A)  technology 
B)  chemistry 
C)  alchemy 
D)  natural philosophy

Question 8

Organic foods do not contain chemicals.

Accepted Answer

A) True 
 B)False

Question 9

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 10

A scientific hypothesis is

Accepted Answer

A)  absolute. 
B)  complex. 
C)  simple. 
D)  tentative. 
A)  absolute. 
B)  complex. 
C)  simple. 
D)  tentative.

Question 11

Which of the following represents an element?

Accepted Answer

A)  HF 
B)  Se 
C)  F2 
D)  CO2 
A)  HF 
B)  Se 
C)  F2 
D)  CO2

Question 12

The label on a can of sparkling mineral water lists the following ingredients: carbonated water and natural lime flavor. Which one of the following best classifies the beverage?

Accepted Answer

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

Question 13

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 14

A chemical change always involves a change in the ________ of matter.

Accepted Answer

A)  state 
B)  composition 
C)  volume 
D)  temperature 
A)  state 
B)  composition 
C)  volume 
D)  temperature

Question 15

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 16

The prefix kilo means ________.

Accepted Answer

A)  10-9 
B)  10-6 
C)  10-3 
D)  103 
A)  10-9 
B)  10-6 
C)  10-3 
D)  103

Question 17

Scientific results must be verified by

Accepted Answer

A)  constructing plausible theories. 
B)  consulting noted scientific authorities. 
C)  further experiment. 
D)  government agencies. 
A)  constructing plausible theories. 
B)  consulting noted scientific authorities. 
C)  further experiment. 
D)  government agencies.

Question 18

The boiling 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 19

The density of mercury is 13.6 g/cm3. What approximate mass of mercury is required to fill a 4.0 ounce bottle? An ounce is approximately 30 cm3.

Accepted Answer

A)  1632 g 
B)  540 g 
C)  53 g 
D)  2 g 
A)  1632 g 
B)  540 g 
C)  53 g 
D)  2 g

Question 20

The acronym FLaReS helps to remember four rules: Falsifiability, logic, replicability and ________.

Accepted Answer

The answer of The acronym FLaReS helps to remember four...

Exam 1: Chemistry

A mixture of sand and salt is a(n)

Which of the following statements about the size of temperature units is NOT true?

Mass is a better measure of the amount of matter than weight is because

The prefix milli means ________.

What is green chemistry? Give an example.

John eats shrimp for the first time and develops chills and a fever that evening. He can therefore conclude that eating shrimp was the cause of his fever and chills.

Which developed first?

Organic foods do not contain chemicals.

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?

A scientific hypothesis is

Which of the following represents an element?

The label on a can of sparkling mineral water lists the following ingredients: carbonated water and natural lime flavor. Which one of the following best classifies the beverage?

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

A chemical change always involves a change in the ________ of matter.

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.

The prefix kilo means ________.

Scientific results must be verified by

The boiling point of water on the Kelvin temperature scale is

The density of mercury is 13.6 g/cm3. What approximate mass of mercury is required to fill a 4.0 ounce bottle? An ounce is approximately 30 cm3.

The acronym FLaReS helps to remember four rules: Falsifiability, logic, replicability and ________.

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

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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?

The density of mercury is 13.6 g/cm³. What approximate mass of mercury is required to fill a 4.0 ounce bottle? An ounce is approximately 30 cm³.