Ответ:
Объяснение:
Mr(CaCO3) = Ar(Ca) + Ar(C) + Ar(O) * 3 = 40 + 12 + 16 * 3 = 100
w(Ca) = Ar(Ca) /Mr(CaCO3) * 100% = 40/100 * 100% = 40%
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Ответ:
Объяснение:
Mr(CaCO3) = Ar(Ca) + Ar(C) + Ar(O) * 3 = 40 + 12 + 16 * 3 = 100
w(Ca) = Ar(Ca) /Mr(CaCO3) * 100% = 40/100 * 100% = 40%