Glencoe Science Level Red

Chapter 6: Energy

Section 3 Self-Check Quiz-Eng.

1
A change in which one or more substances are converted into new substances is a __________.
A)physical change
B)chemical reaction
C)nuclear reaction
D)chemical fusion
2
Energy stored in chemical bonds is __________.
A)chemical potential energy
B)chemical kinetic energy
C)energy of activation
D)thermal potential energy
3
A chemical reaction that absorbs energy is __________.
A)an exothermic reaction
B)an endothermic reaction
C)explosive
D)rare
4
A chemical reaction that releases energy is __________.
A)an endothermic reaction
B)catalyzed
C)harmless
D)an exothermic reaction
5
A(n) __________ is a substance that changes the rate of a chemical reaction without any change to its own structure.
A)catalyst
B)initiator
C)inhibitor
D)reactant
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