Chemistry, 01.03.2021 18:00 natalie857123
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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
Chemistry, 23.06.2019 02:00
What can be done to make a solid solute dissolve faster in a liquid solvent?
Answers: 1
Chemistry, 23.06.2019 06:30
(04.01 lc) which of the following is true about science? (5 points) select one: a. it is not influenced by social conditions. b. it is not determined by external local factors. c. political conditions are unable to influence it. d. economic concerns may prevent it from solving problems.
Answers: 1
5
3. Identify each of the following observations as evidence of either a physical change or a
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