write the formulae of Copper (II) nitride salts by Criss-cross method
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Answer:
The formula for Copper(II) Nitride is Cu3N2
Explanation:
To find the chemical formula, symbol and valency should be known.
Symbol and Valency of Copper(II) is Cu and 2+.
Symbol and Valency of Nitride is N and 3-.
Therefore, when the valencies are changed, the formula will be Cu3N2
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