Ответ:
Mr[CaCO3] = Ar[Ca] + Ar[C] + Ar[O] * 3 = 40.078 + 12.0107 + 15.9994 * 3 = 100.0869
Mr[Fe2O3] = Ar[Fe] * 2 + Ar[O] * 3 = 55.845 * 2 + 15.9994 * 3 = 159.6882
Объяснение:
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Ответ:
Mr[CaCO3] = Ar[Ca] + Ar[C] + Ar[O] * 3 = 40.078 + 12.0107 + 15.9994 * 3 = 100.0869
Mr[Fe2O3] = Ar[Fe] * 2 + Ar[O] * 3 = 55.845 * 2 + 15.9994 * 3 = 159.6882
Объяснение: