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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
Reactant
C
Coefficient
D
Catalyst
2) A substance that forms in a chemical reaction.
A
Catalyst
B
Coefficient
C
Reactant
D
Product
3) A chemical reaction that requires heat.
A
Exothermic
B
Synthesis
C
Decomposition
D
Endothermic
4) A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products.
A
Chemical Equation
B
Catalyst
C
Formula
D
Coefficient
5) a number that is used to measure some property or characteristic of a substance.
A
Chemical Equation
B
Coefficient
C
Catalyst
D
Formula
6) A law that states that mass cannot be created nor destroyed
A
Conservation of Energy
B
Conservation of Mass
7) Reaction in which two or more substances combine to form a new compound.
A
Decomposition
B
Single Displacement
C
Double Displacement
D
Synthesis
8) A reaction in which a single compound breaks down to form two or more simpler substances.
A
Single Displacement
B
Synthesis
C
Decomposition
D
Double Displacement
9) A reaction in which one element takes the place of another element in a compound.
A
Double Displacement
B
Synthesis
C
Single Displacement
D
Decomposition
10) A reaction in which a gas, a solid, or a molecular compound forms from the exchange of ions between two compounds.
A
Single Displacement
B
Decomposition
C
Synthesis
D
Double Displacement
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
Endothermic
B
Inhibitor
C
Catalyst
D
Exothermic
13) A substance that slows down or stops a chemical reaction.
A
Exothermic
B
Inhibitor
C
Endothermic
D
Catalyst
14) Any compound that increases the number of hydronium ions when dissolved in water.
A
Inhibitor
B
Acid
C
Base
D
Catalyst
15) Any compound that increases the number of hydroxide ions when dissolved in water.
A
Inhibitor
B
Catalyst
C
Base
D
Acid
16) A value that is used to express the acidity or basicity of a system; measure of hydronium ion concentration.
A
Buffer
B
Acid
C
Base
D
pH
17) The reaction of an acid and a base to form a neutral solution of water and salt
A
Neutralization
B
Decomposition
C
Synthesis
D
Single Displacement
*select an answer for all questions
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