Ответ:
200----100%
x--------8%=16
16 14 x
CuSO4+Fe=FeSO4+Cu
160 56 152
160----152
16----x/=15.2г
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Ответ:
200----100%
x--------8%=16
16 14 x
CuSO4+Fe=FeSO4+Cu
160 56 152
160----152
16----x/=15.2г