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List 3 pieces of evidence to identify a chemical change is occurring 1. 2. 3.?
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- steve_geo1Lv 76 years agoFavorite Answer
1. In water solution, a precipitate occurs.
2. A gas evolves
3. The solution changes color.
Adding H2SO4 to water causes the water to heat up; adding ammonium chloride to water causes the water to chill. Neither is a chemical reaction. Therefore, be careful and not let temperature changes deceive you.
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