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Chemical Reactions
Test Description: Chemical Reactions
Instructions: Answer all questions to get your test result.
1) A substance or molecule that participates in a chemical reaction.
A
Product
B
Catalyst
C
Coefficient
D
Reactant
2) A substance that forms in a chemical reaction.
A
Coefficient
B
Reactant
C
Product
D
Catalyst
3) A chemical reaction that requires heat.
A
Synthesis
B
Decomposition
C
Endothermic
D
Exothermic
4) A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products.
A
Catalyst
B
Formula
C
Coefficient
D
Chemical Equation
5) a number that is used to measure some property or characteristic of a substance.
A
Chemical Equation
B
Formula
C
Catalyst
D
Coefficient
6) A law that states that mass cannot be created nor destroyed
A
Conservation of Mass
B
Conservation of Energy
7) Reaction in which two or more substances combine to form a new compound.
A
Decomposition
B
Double Displacement
C
Synthesis
D
Single Displacement
8) A reaction in which a single compound breaks down to form two or more simpler substances.
A
Single Displacement
B
Double Displacement
C
Synthesis
D
Decomposition
9) A reaction in which one element takes the place of another element in a compound.
A
Single Displacement
B
Decomposition
C
Synthesis
D
Double Displacement
10) A reaction in which a gas, a solid, or a molecular compound forms from the exchange of ions between two compounds.
A
Synthesis
B
Single Displacement
C
Double Displacement
D
Decomposition
11) A chemical reaction in which heat is released to the surroundings.
A
Endothermic
B
Exothermic
12) A substance that changes the rate of a chemical reaction without being used up or changed very much.
A
Exothermic
B
Endothermic
C
Inhibitor
D
Catalyst
13) A substance that slows down or stops a chemical reaction.
A
Endothermic
B
Exothermic
C
Catalyst
D
Inhibitor
14) Any compound that increases the number of hydronium ions when dissolved in water.
A
Catalyst
B
Inhibitor
C
Acid
D
Base
15) Any compound that increases the number of hydroxide ions when dissolved in water.
A
Inhibitor
B
Acid
C
Catalyst
D
Base
16) A value that is used to express the acidity or basicity of a system; measure of hydronium ion concentration.
A
Acid
B
Buffer
C
Base
D
pH
17) The reaction of an acid and a base to form a neutral solution of water and salt
A
Decomposition
B
Neutralization
C
Single Displacement
D
Synthesis
*select an answer for all questions
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