Question

how will you show experimentally that an electric current can bring about a chemical change what is this phenomenon called​

Answer 1

This observation, therefore, shows that electric current has a chemical effect on water. This experiment shows that an electric current can bring about a chemical change. This phenomenon is called electrolysis.

Answer 2

This experiment says that an electrical current can induce a chemical change, which is called electrolysis.

Explanation:

• When absorption in water, copper sulphate splits into negatively charged anions (ions) and positively charged cations (ions).
• Cations pass toward the negatively charged cathode (electrode), and anions travel toward the positively charged anode (electrode), thus placing copper at the cathode.
• This experiment says that an electrical current can induce a chemical change, which is called electrolysis.

Electrode:- An electrode is a solid electrical conductor bringing electrical current into liquids,or non-metallic solids, gases, or vacuums or plasmas.

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