In physical science lab, kim and dawn added small pieces of magnesium to hydrochloric acid. they noticed that bubbles formed, the test tube got hot, and the magnesium disappeared. what is a sign that a chemical reaction has taken place in this experiment? question options: odor gas is produced magnesium appeared temperature decreased
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In physical science lab, kim and dawn added small pieces of magnesium to hydrochloric acid. they not...
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