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s2008m [1.1K]
3 years ago
8

When an electric current passes through water, _____ takes place, breaking down the compound into hydrogen and oxygen. a physica

l change an atomic change a chemical change an elemental change
Chemistry
2 answers:
PSYCHO15rus [73]3 years ago
5 0
Electrolysis takes place when an electric current passes through water.
pav-90 [236]3 years ago
4 0

Answer: a chemical change

Explanation:

A physical reaction is defined as the reaction in which a change in shape, size takes place. No new substance gets formed in these reactions.  Example: melting of ice

A chemical reaction is defined as the reaction in which a change in chemical composition takes place.A new substance is formed in these reactions.

Decomposition of water using electric current to produce hydrogen and oxygen is called as electrolysis and is a chemical change.

2H_2O\rightarrow 2H_2+O_2

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