Chemistry, 23.02.2020 08:57 trashmonkey620
The Law of Conservation of Energy is one of the most important principles in all of science. What does conservation mean in this context?
a. Only small changes in the total energy of a system are possible
b. Planned management
c. Protection from running out
d. Careful usage
e. An increase or decrease is impossible
Answers: 2
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Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
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The Law of Conservation of Energy is one of the most important principles in all of science. What do...
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