The answer is Cd(ClO4)2 The charge of cadmium(II) is 2+, and the charge of ClO4 is 1-. So to even the charges we must have two of the ClO4.
It is Ca(ClO4)2. This means that cadmium has a valency of 2 and perchlorate has a valency of 1.
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Cu(ClO4)2
If it's copper (I): CuClO4 If it's copper (II): Cu(ClO4)2
Pb+4 Cl-1
The chemical formula of mercury(II) nitrate is Hg(NO3)2.
Cadmium (II) carbide.
Cu(ClO4)2
If it's copper (I): CuClO4 If it's copper (II): Cu(ClO4)2
cobalt II perchlorate is an ionic compond cobalt II has an oxidation number of +2; its symbol is Co perchlorate is a polyatomic ion with a charge of -1; its formula is ClO4 therefore the formula is Co(ClO4)2
Formula = Pb(ClO4)2
Pb+4 Cl-1
Sn(CLO3)2 Tin (II) has a positive 2 charge and Chlorate has a (-1) charge so you need to cholrates to one Tin.
CO(Cl)4)2 It is Co(ClO4)2
The chemical formula of mercury(II) nitrate is Hg(NO3)2.
Cadmium (II) carbide.
The chemical formula for nickel* (II) sulfate is NiSO4. *Note correct spelling.
cadmium diiodide or cadmium (II) iodide --------- Right Answer: Cadmium iodide
Iron (II) hydride has the formula FeH2.