Answers by Simone Margaritelli
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Answers by Simone Margaritelli

Answers by Simone Margaritelli
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How many kilojoules are released when 2.25 mol of H2O2 reacts?
answered Jan 11, 2021
0 votes
102k views
Modern humans (Homo sapiens sapiens) appeared about 0.04 million years ago. What percentage of the geologic time scale includes the "human occupation of the Earth"? (Be sure to give your answer was a percent
answered Jul 27, 2020
0 votes
170k views
You drop a ball from a height of 2.0 m, and it bounces back to a height of 1.6 m. (a) what fraction of its initial energy is lost during the bounce? (b) what is the ball's speed just before and just after
answered Jun 4, 2019
2 votes
8.7k views
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