The half-cell reaction and overall reaction are to represented; the explanation for what happens to the impurities during the electrolysis is to be given; and the time required to obtain 1.00 kg of Cu is to be calculated. Concept introduction: Electrolysis is the process in which electric current is passed through a substance to effect a chemical change. The chemical change in a substance occurs due to loses or gains an electron (oxidation or reduction). A half reaction is a type of chemical reaction in which either oxidation or reduction takes place as a component of a redox reaction . The equation for current is represented as charge per unit time. Current = Charge Time

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Chapter 19, Problem 112AP

Interpretation Introduction

Interpretation:

The half-cell reaction and overall reaction are to represented; the explanation for what happens to the impurities during the electrolysis is to be given; and the time required to obtain 1.00 kg

of Cu is to be calculated.

Concept introduction:

Electrolysis is the process in which electric current is passed through a substance to effect a chemical change. The chemical change in a substance occurs due to loses or gains an electron (oxidation or reduction).

A half reaction is a type of chemical reaction in which either oxidation or reduction takes place as a component of a redox reaction.

The equation for current is represented as charge per unit time. Current=ChargeTime

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