Question 1

Which of the following is an example of a physical change?

Accepted Answer

A)  Smell 
B)  Gas bubbles 
C)  Release of heat 
D)  Creation of new substance 
A)  Smell 
B)  Gas bubbles 
C)  Release of heat 
D)  Creation of new substance A

Question 2

What do acids release when mixed with water?

Accepted Answer

A)  Oxygen 
B)  Hydroxyl 
C)  Hydrogen 
D)  pH 
A)  Oxygen 
B)  Hydroxyl 
C)  Hydrogen 
D)  pH C

Question 3

What branch of chemistry that studies the relationships among the physical properties of substances and their chemical compositions and transformations?

Accepted Answer

A)  Organic chemistry 
B)  Inorganic chemistry 
C)  Physical chemistry 
D)  Compound chemistry 
A)  Organic chemistry 
B)  Inorganic chemistry 
C)  Physical chemistry 
D)  Compound chemistry C

Question 4

What composes matter?

Accepted Answer

A)  Atoms 
B)  Carbon 
C)  Elements 
D)  Hydrocarbons 
A)  Atoms 
B)  Carbon 
C)  Elements 
D)  Hydrocarbons

Question 5

What is the atomic number in the periodic table?

Accepted Answer

A)  A shorthand way to refer to the element when writing chemical equations 
B)  The number of protons found in the nucleus of an atom 
C)  The approximate sum of the number of protons and neutrons found in the nucleus of an atom 
D)  A measure of the amount of hydrogen ions in a solution that can react and indicate whether a substance is an acid or a base 
A)  A shorthand way to refer to the element when writing chemical equations 
B)  The number of protons found in the nucleus of an atom 
C)  The approximate sum of the number of protons and neutrons found in the nucleus of an atom 
D)  A measure of the amount of hydrogen ions in a solution that can react and indicate whether a substance is an acid or a base

Question 6

What color does a base turn litmus paper?

Accepted Answer

A)  Red 
B)  Blue 
C)  Green 
D)  Yellow 
A)  Red 
B)  Blue 
C)  Green 
D)  Yellow

Question 7

What is the result when substances are combined but do not react chemically?

Accepted Answer

A)  Soluble 
B)  Mixture 
C)  Insoluble 
D)  Solution 
A)  Soluble 
B)  Mixture 
C)  Insoluble 
D)  Solution

Question 8

Which pH value is an indicator of a strong acid?

Accepted Answer

A)  0 
B)  7 
C)  14 
D)  100 
A)  0 
B)  7 
C)  14 
D)  100

Question 9

What are the starting substances in a chemical reaction?

Accepted Answer

A)  Products 
B)  Reactants 
C)  Catalyst 
D)  Solution 
A)  Products 
B)  Reactants 
C)  Catalyst 
D)  Solution

Question 10

Which of the following is an example of an inert gas?

Accepted Answer

A)  Neon 
B)  Oxygen 
C)  Hydrogen 
D)  Phosphorous 
A)  Neon 
B)  Oxygen 
C)  Hydrogen 
D)  Phosphorous

Question 11

What term is used to describe positively charged particles found in the nucleus of an atom?

Accepted Answer

A)  Protons 
B)  Electrons 
C)  Neutrons 
D)  Molecules 
A)  Protons 
B)  Electrons 
C)  Neutrons 
D)  Molecules

Question 12

What part of a solution is the substance present in a solution in the largest amount?

Accepted Answer

A)  Soluble 
B)  Solvent 
C)  Insoluble 
D)  Solute 
A)  Soluble 
B)  Solvent 
C)  Insoluble 
D)  Solute

Question 13

What happens when a catalyst is added to a chemical reaction?

Accepted Answer

A)  A new substance is formed 
B)  A physical reaction occurs 
C)  Speed of the reaction is decreased 
D)  Speed of the reaction is increased 
A)  A new substance is formed 
B)  A physical reaction occurs 
C)  Speed of the reaction is decreased 
D)  Speed of the reaction is increased

Question 14

What is it called if a solute will dissolve in a solvent?

Accepted Answer

A)  Soluble 
B)  Insoluble 
C)  Miscible 
D)  Immiscible 
A)  Soluble 
B)  Insoluble 
C)  Miscible 
D)  Immiscible

Question 15

What term refers to the release of energy during a chemical reaction?

Accepted Answer

A)  Exothermic 
B)  Endothermic 
C)  Heterogeneous 
D)  Immiscible 
A)  Exothermic 
B)  Endothermic 
C)  Heterogeneous 
D)  Immiscible

Question 16

If a new substance is not produced, what type of change has occurred?

Accepted Answer

A)  Physical change 
B)  Chemical change 
C)  Compounded change 
D)  Composition change 
A)  Physical change 
B)  Chemical change 
C)  Compounded change 
D)  Composition change

Question 17

When reading the periodic table, what happens to electronegativity from left to right?

Accepted Answer

A)  Electronegativity increases 
B)  Electronegativity decreases 
C)  Electronegativity does not change 
D)  Electronegativity is not measured 
A)  Electronegativity increases 
B)  Electronegativity decreases 
C)  Electronegativity does not change 
D)  Electronegativity is not measured

Question 18

Which of the following is an example of a chemical property?

Accepted Answer

A)  pH 
B)  Color 
C)  Boiling point 
D)  Viscosity 
A)  pH 
B)  Color 
C)  Boiling point 
D)  Viscosity

Exam 12: Basic Chemistry

Which of the following is an example of a physical change?

What do acids release when mixed with water?

What branch of chemistry that studies the relationships among the physical properties of substances and their chemical compositions and transformations?

What composes matter?

What is the atomic number in the periodic table?

What color does a base turn litmus paper?

What is the result when substances are combined but do not react chemically?

Which pH value is an indicator of a strong acid?

What are the starting substances in a chemical reaction?

Which of the following is an example of an inert gas?

What term is used to describe positively charged particles found in the nucleus of an atom?

What part of a solution is the substance present in a solution in the largest amount?

What happens when a catalyst is added to a chemical reaction?

What is it called if a solute will dissolve in a solvent?

What term refers to the release of energy during a chemical reaction?

If a new substance is not produced, what type of change has occurred?

When reading the periodic table, what happens to electronegativity from left to right?

Which of the following is an example of a chemical property?

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