jayan16 jayan16

27-04-2016
Chemistry

Answered

When electricity is added to water, water breaks down and becomes hydrogen gas and oxygen gas. This is a chemical change because

A

energy has been added.

B

a liquid has become a gas.

C

hydrogen and oxygen are chemicals.

D

water has changed its identity

Verified Answer :

27-04-2016

A chemical reaction is when atoms/molecules are taken apart and rearranged to create something new. So I think the answer is B

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