Which of the following statements is true for electrolysis? new atoms are created by destroying old atoms. a compound is heated to form multiple products. an electric current is used to synthesize a substance. an electric current is used to decompose a substance.

An electric current is used to decompose a substance.

Explanation:

Concept tested: Electrolysis

We can answer the question by asking ourselves important questions

First; What is electrolysis?

Electrolysis refers to the process through which molten or aqueous compound known as electrolytes are decomposed by passing electric current through them.

Second; What are electrolytes?

Electrolytes are substances in either molten or aqueous form and are good conductors of electric current.Electrolytes are good conductors of electric current due to the presence of mobile ions.

Third: What happens during electrolysis?

Electrolytes are therefore decomposed by passing electric current through them resulting to formation of new elements or molecules. For example, when molten sodium chloride is decomposed by passing electric current through it, sodium metal is released at the cathode while chlorine is released at the anode.

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