how do you know that a chemical reaction has occurred when 2 or more elements are combined to form a compound?

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2007-05-02 14:21:44 · 2 answers · asked by classy.chic 3 in Science & Mathematics ➔ Chemistry

look for evidence of:
formation of precipitate
formation of gas
change of color

2007-05-02 20:03:58 · answer #1 · answered by Jane D 3 · 0⤊ 0⤋

The compound will differ chemically form the elements.

2007-05-03 03:52:47 · answer #2 · answered by ag_iitkgp 7 · 0⤊ 0⤋