W=n*Ar*100%/Mr Ar(Cu)=64 Mr(CuCl2)=64+71=135
W(Cu)=1*64*100/135=47,4%
W(Cl)=100-47,4=52,6%
ответ: 47,4%; 52,6%
W=n*Ar*100%/Mr Ar(Cu)=64 Mr(CuCl2)=64+71=135
W(Cu)=1*64*100/135=47,4%
W(Cl)=100-47,4=52,6%
ответ: 47,4%; 52,6%