Ответ:
NaCl=14+35,5=49,5
Fe2O3=56•2+16•3=160
MgSO3=24+32+16•3=104
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Ответ:
NaCl=14+35,5=49,5
Fe2O3=56•2+16•3=160
MgSO3=24+32+16•3=104