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Which of these is an indication that a chemical reaction has occurred? A.) formation of gas B.) Boiling of a substance C.) Melting of a substance D.) freezing of a substance
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3 votes
Which of these is an indication that a chemical reaction has occurred?

A.) formation of gas

B.) Boiling of a substance

C.) Melting of a substance

D.) freezing of a substance

User Afonso Matos
by
7.7k points

1 Answer

3 votes

Formation Of A Gas.

User Christopher Aldama
by
8.1k points
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