suzza4C6lauerrassie suzza4C6lauerrassie

14-12-2016
Chemistry

Answered

Which statement about a chemical reaction is true?

It occurs only at low temperatures.

It occurs only at high temperatures.

It occurs whenever a physical change takes place

It occurs whenever a chemical change takes place.

Verified Answer :

scme1702 scme1702

16-12-2016

It occurs whenever a chemical change takes place.

Chemical reactions occur when chemical, or physically irreversible, changes take place.

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focasio5602 focasio5602

12-03-2019

d. is the right one.......

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