Which statement best characterizes chemical reactions?
they always occur very quickly.<...
Chemistry, 14.11.2019 23:31 zwbaby3693
Which statement best characterizes chemical reactions?
they always occur very quickly.
their rates vary significantly.
their rates are always slow.
they rarely occur in the natural environment.
Answers: 2
Chemistry, 22.06.2019 17:40, Snowball080717
How much heat is added if 0.814g of water increase in temperature by 0.351 degree c?
Answers: 3
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How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.
Answers: 3
Chemistry, 22.06.2019 22:00, shaylasimonds587
The volume of an unknown substance in a sealed glass jar is 50 milliliters. the volume of the jar is 200 milliliters. which state of matter could the substance be?
Answers: 2
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