How II II be 0 objects?

It's a Wii that lost it's "W".

the II means that the charge of the copper, in this case, is +2, rather than, say, +1, which is copper's other possible charge.the formula for copper II chloride is CuCl2, rather than copper I...

Maria-Henrietta of France, sister of Louis XIII. Charles got his Italian looks from his maternal grandmother Maria de Medici.

Yes they were Charles II died without a legitimate heir and James II succeeded him.

Copper hydroxide will decompose under strong heating to form copper(II)oxide and water.