Multiple Choice
When water is heated,bubbles form in the water.Is this evidence of a chemical reaction? Why?
A) No,boiling water is a physical change.
B) Yes,the formation of a gas is evidence of a chemical reaction.
C) No,the formation of gas bubbles is a secondary chemical reaction which is ignored.
D) Yes,the formation of a gas is proof a new compound has been made.
E) none of the above
Correct Answer:
Verified
Correct Answer:
Verified
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