Question

what is the chemical formula for zinc phosphate and copper nitrate

Answer 1

Zn3(PO4)2 or O8P2Zn3

Cu(NO3)2

Answer 2

Zinc Phosphate is Zn3(PO4)2 because valency of Zn is 2+ and valency of PO4 is 2-.
Copper Nitrate is Cu(NO3)2 because valency of Cu is 2+ and valency of NO3 is 1-.
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