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physical change → no change in chemical composition
chemical change → change in chemical composition as a result of a chemical reaction
Which of the following are chemical changes? Which are physical changes?
f. DNA unwinding
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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl 2nd Edition practice problems.