Ответ:
Cu2o= 16+16+63=95
fe2o3=(16×3)+(56×2)=48+112= 160
wo3=(16×3)+184=232
feo= 16+56= 72
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Ответ:
Cu2o= 16+16+63=95
fe2o3=(16×3)+(56×2)=48+112= 160
wo3=(16×3)+184=232
feo= 16+56= 72