give example of 2 metals with variable valency
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Answered by
1
Answer:
copper and iron
Explanation:
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Answered by
2
Answer:
ex:-
copper:-
Cuprous (),valance 1,ion Cu+
Cupric oxide(CuO),valance 2,ion
iron
Ferrous oxide (FeO),valance 2,ion
Ferric oxide (),valance 3,ion
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