asked 79.0k views
5 votes
Which piece of evidence indicates that a chemical reaction has occurred?

Question 1 options:

melting of a substance


boiling of a substance


formation of a precipitate


freezing of a substance

asked
User Lukasz
by
7.1k points

1 Answer

4 votes
formation of a precipitate
answered
User Niki Yoshiuchi
by
8.7k points

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