animegirl1 animegirl1

25-09-2017
Chemistry

contestada

9) How do you know a chemical change has occurred?
a. New bonds have formed or bonds have broken.
b. The matter has had a change in state.
c. The temperature has changed.
d. All of the above
e. Only a and c are indicators of a chemical change.

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GraceCameron GraceCameron

25-09-2017

I believe the answer is E

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