Chemistry, 08.11.2019 17:31, diamondktaylor
When two substances are mixed together, a color change is observed. does this mean that a chemical reaction has definitely occurred? - yes because any change indicates a chemical reaction. - no because some physical changes produce color changes. - no because color changes are not indicators of chemical reactions. - yes because color changes occur only when new compounds are formed.
Answers: 2
Physics, 27.08.2019 12:20, kidlol
Answers: 2
Chemistry, 06.11.2019 20:31, ayowazzzgood
Answers: 3
When two substances are mixed together, a color change is observed. does this mean that a chemical r...
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