Ответ:
Xг 640г
FeS2→→→→→→2S Х=640*120/64=1200г
120г 64г
1200--------------80%
Х ------------------100% Х=1500г=1,5т руд
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Ответ:
Xг 640г
FeS2→→→→→→2S Х=640*120/64=1200г
120г 64г
1200--------------80%
Х ------------------100% Х=1500г=1,5т руд