Concept explainers
Interpretation:
The food storage can are coated using Tins. When tin is scratched and iron is exposed, corrosion of iron happens more or less rapidly than if tin was not present has to be explained. The reason why the can inside is coated with clear varnish has to be explained.
Concept Introduction:
An
Galvanic cell consists of two half-cells. The redox reaction occurs in these half-cells. The half-cell in which the reduction reaction occurs is known as the reduction half-cell, whereas the half-cell in which the oxidation reaction occurs is known as the oxidation half-cell.
Anode: The electrode where the oxidation occurs is called as an anode. It is a negatively charged electrode.
Cathode: The electrode where reduction occurs is called as a cathode. It is a positively charged electrode.
Oxidation: The gain of oxygen or the loss of hydrogen or the loss of an electron in a species during a redox reaction is called as oxidation.
Reduction: The loss of oxygen or the gain of hydrogen or the gain of an electron in a species during a redox reaction is called as reduction.

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Chapter 21 Solutions
CHEMISTRY MOLECULAR NATURE OF MATTER AND
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