Question

examples of variable valency 2 examplea​

Answer 1

Answer:

Certain elements have more than one valency. They exhibit variable valency. For example, copper, tin, iron and mercury exhibit variable valency. Copper combines with oxygen to form cuprous oxide (Cu2O) and cupric oxide (CuO).

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Variable Valency Examples.

Element Valency Ion

Mercury (Hg) 2 Mercuric (Hg2+)

Tin (Sn) 2 Stannous (Sn2+)

4 Stannic (Sn4+

Explanation:

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Answer 2

Answer:

For example, copper, tin, iron and mercury exhibit variable valency. Copper combines with oxygen to form cuprous oxide (Cu2O) and cupric oxide (CuO).

Explanation:

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