5
3. Identify each of the following observations as evidence of either a physical change or a
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Chemistry, 01.03.2021 18:00 natalie857123
5
3. Identify each of the following observations as evidence of either a physical change or a
chemical change.
(a) A piece of copper is heated until it melts.
(b) A piece of aluminum corrodes in a solution of acid.
(c) A piece of paper burns in a candle flame.
(d) A piece of plastic is stretched until it breaks.
(e) Table salt boils at 1465°C.
Answers: 1
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