Question 1

Which is not a mixture?

Accepted Answer

A)  pure water 
B)  mayonnaise 
C)  strawberry Kool-Aid® drink 
D)  rock 
A)  pure water 
B)  mayonnaise 
C)  strawberry Kool-Aid® drink 
D)  rock

Question 2

How many phosphorus atoms are in the formula H3PO4?

Accepted Answer

A)  4 
B)  3 
C)  7 
D)  1 
A)  4 
B)  3 
C)  7 
D)  1

Question 3

Glucose has the chemical formula C6H12O6. In one molecule of glucose there are 24 atoms.

Accepted Answer

A) True 
 B)False

Question 4

Which is a chemical property?

Accepted Answer

A)  boiling point 
B)  state 
C)  odor 
D)  flammability 
A)  boiling point 
B)  state 
C)  odor 
D)  flammability

Question 5

MATCHING
Use the pictures below to answer the following questions.

-Which figure above depicts a compound?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 6

MATCHING
Use the pictures below to answer the following questions.

-Which figure above depicts an element?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 7

There are ____________mg in exactly 10g.

Accepted Answer

The answer of There are ____________mg in exactly 10g....

Question 8

Which mixture is heterogeneous?

Accepted Answer

A)  salt and water 
B)  water and oil 
C)  sweetened hot tea 
D)  Ivory soap bar 
A)  salt and water 
B)  water and oil 
C)  sweetened hot tea 
D)  Ivory soap bar

Question 9

Which of the following is not a chemical change?

Accepted Answer

A)  burning charcoal 
B)  rusting iron 
C)  melting ice 
D)  baking bread 
A)  burning charcoal 
B)  rusting iron 
C)  melting ice 
D)  baking bread

Question 10

MATCHING
Use the pictures below to answer the following questions.

-Which figure above depicts a heterogeneous mixture?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 11

How many categories of pure substances exist?

Accepted Answer

A)  2 
B)  3 
C)  thousands 
D)  about 100 
A)  2 
B)  3 
C)  thousands 
D)  about 100

Question 12

A process is probably a chemical reaction if

Accepted Answer

A)  it produces light. 
B)  a solid appears when two solutions are mixed. 
C)  bubbles start to form when two substances are mixed. 
D)  all of these 
A)  it produces light. 
B)  a solid appears when two solutions are mixed. 
C)  bubbles start to form when two substances are mixed. 
D)  all of these

Question 13

How would you separate a mixture of salt, sand, and water?

Accepted Answer

A)  by filtration, followed by evaporation 
B)  freezing, followed by melting 
C)  separating with tweezers, followed by evaporation 
D)  by filtration, followed by burning 
A)  by filtration, followed by evaporation 
B)  freezing, followed by melting 
C)  separating with tweezers, followed by evaporation 
D)  by filtration, followed by burning

Question 14

The chemical symbol for copper is_________.

Accepted Answer

The answer of The chemical symbol for copper is_________....

Question 15

Separating a mixture of iron and sulfur can be done

Accepted Answer

A)  by filtration. 
B)  dissolving in water. 
C)  with a magnet. 
D)  by burning. 
A)  by filtration. 
B)  dissolving in water. 
C)  with a magnet. 
D)  by burning.

Question 16

Which statement describes a physical property of oxygen?

Accepted Answer

A)  Oxygen supports burning of gasoline. 
B)  Oxygen has a density of 0.0014 g/mL. 
C)  Oxygen is required for human metabolism of food. 
D)  Oxygen combines with iron causing the formation of rust. 
A)  Oxygen supports burning of gasoline. 
B)  Oxygen has a density of 0.0014 g/mL. 
C)  Oxygen is required for human metabolism of food. 
D)  Oxygen combines with iron causing the formation of rust.

Question 17

What is the coefficient in front of iron when the following equation is balanced? Fe + O2 $\to$ Fe2O3

Accepted Answer

A)  1 
B)  2 
C)  4 
D)  6 
A)  1 
B)  2 
C)  4 
D)  6

Question 18

In order to convert a measurement for the element mercury from mass to volume, one would multiply the starting measurement by the following factor.

Accepted Answer

A) True 
 B)False

Question 19

A pure substance which can be decomposed into two or more pure substances is a(n)

Accepted Answer

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

Which is not a mixture?

How many phosphorus atoms are in the formula H₃PO₄?

Glucose has the chemical formula C₆H₁₂O₆. In one molecule of glucose there are 24 atoms.

Which is a chemical property?

MATCHING Use the pictures below to answer the following questions. -Which figure above depicts a compound?

MATCHING Use the pictures below to answer the following questions. -Which figure above depicts an element?

There are ____________mg in exactly 10g.

Which mixture is heterogeneous?

Which of the following is not a chemical change?

MATCHING Use the pictures below to answer the following questions. -Which figure above depicts a heterogeneous mixture?

How many categories of pure substances exist?

A process is probably a chemical reaction if

How would you separate a mixture of salt, sand, and water?

The chemical symbol for copper is_________.

Separating a mixture of iron and sulfur can be done

Which statement describes a physical property of oxygen?

What is the coefficient in front of iron when the following equation is balanced? Fe + O₂ $\to$ Fe₂O₃

In order to convert a measurement for the element mercury from mass to volume, one would multiply the starting measurement by the following factor.

A pure substance which can be decomposed into two or more pure substances is a(n)

Living in a World of Chemistry

Atoms and the Periodic Table

The Air We Breathe

Chemical Bonding and States of Matter

Carbon Dioxide and the Greenhouse Effect

Chlorofluorocarbons and the Ozone Layer

Chemical Reactivity: Chemicals in Action

Acid-Base Reactions

Oxidation-Reduction Reactions

Water, Water Everywhere but Not a Drop to Drink

Energy and Hydrocarbons

Nuclear Changes and Nuclear Power

Organic Chemicals and Polymers

The Chemistry of Life

Nutrition: the Basis of Healthy Living

Chemistry and Medicine

The Chemistry of Useful Materials

Feeding the World

Filters

Exam 2: The Chemical View of Matter

Which is not a mixture?

How many phosphorus atoms are in the formula H3PO4?

Glucose has the chemical formula C6H12O6. In one molecule of glucose there are 24 atoms.

Which is a chemical property?

MATCHING Use the pictures below to answer the following questions. -Which figure above depicts a compound?

MATCHING Use the pictures below to answer the following questions. -Which figure above depicts an element?

There are ____________mg in exactly 10g.

Which mixture is heterogeneous?

Which of the following is not a chemical change?

MATCHING Use the pictures below to answer the following questions. -Which figure above depicts a heterogeneous mixture?

How many categories of pure substances exist?

A process is probably a chemical reaction if

How would you separate a mixture of salt, sand, and water?

The chemical symbol for copper is_________.

Separating a mixture of iron and sulfur can be done

Which statement describes a physical property of oxygen?

What is the coefficient in front of iron when the following equation is balanced? Fe + O2 →\to→ Fe2O3

In order to convert a measurement for the element mercury from mass to volume, one would multiply the starting measurement by the following factor.

A pure substance which can be decomposed into two or more pure substances is a(n)

Living in a World of Chemistry

Atoms and the Periodic Table

The Air We Breathe

Chemical Bonding and States of Matter

Carbon Dioxide and the Greenhouse Effect

Chlorofluorocarbons and the Ozone Layer

Chemical Reactivity: Chemicals in Action

Acid-Base Reactions

Oxidation-Reduction Reactions

Water, Water Everywhere but Not a Drop to Drink

Energy and Hydrocarbons

Nuclear Changes and Nuclear Power

Organic Chemicals and Polymers

The Chemistry of Life

Nutrition: the Basis of Healthy Living

Chemistry and Medicine

The Chemistry of Useful Materials

Feeding the World

Filters

How many phosphorus atoms are in the formula H₃PO₄?

Glucose has the chemical formula C₆H₁₂O₆. In one molecule of glucose there are 24 atoms.

What is the coefficient in front of iron when the following equation is balanced? Fe + O₂ $\to$ Fe₂O₃