Question

what is chemial change
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Answer 1

Answer:

here is your asnwer

these reactions can't be backed in its original form.

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions.

eg- burning of paper

Answer 2

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$<font color=green>chemical change, also known as a chemical reaction, is a process in which one or more substances are altered into one or more new and different substances. In other words, a chemical change is a chemical reaction involving the rearrangement of atoms.$

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