Question

chemical formula of zinc oxide in criss cross method​

Answer 1

zinc valency 2 oxygen valency 1

Criss cross it then you will get zno 2

Answer 2

Answer:ZnO2----------1

Explanation:

Oxidation number of Zn is +4 and oxygen is -2 so +4+(a×2)=0.

So chemical formula of zinc oxide is given by

Zn(O)a. In the eqn 1 a=2. So Zn(O)a becomes

ZnO2