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Chemistry, 22.06.2019 06:00
Compare and contrast physical changes with chemical changes.
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Chemistry, 23.06.2019 07:30
Which statement is actually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.
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Chemistry, 23.06.2019 08:30
What percentage of energy used in the u.s is produced from fossil fuels
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Chemistry, 23.06.2019 11:00
Which example is a mechanical wave? a.microwave b.radio wave c.water wave d.ultraviolet light
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