[ Vocabulary ]
a process in which one or more substances are converted to one or more different substances
A. conservation of matter
B. closed system
C. chemical reaction
D. reactant
Select your answer:
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Other quiz:
Spelling › ViewWhat is a synonym of the word “help”?
A. Hinder
B. Change
C. Tired
D. Assist
E. Explain
Grammar › View
As a result, now people __________________ to walk around the monument but they can’t come up very close to it.
A. allow
B. is allowed
C. was allowed
D. are allowed
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