Каковы наименьшие массовые соотношения элементов в соединении
CuSO4? Ar(Cu)=64, Ar(S)=32, Ar(O)=16
A) 16:8:16
В) 32:16:32
С) 64:32:64
Д) 4:2:4
Е) 2:1:2


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