Ответ:
Объяснение:
Mr(CuO) = Ar(Cu) + Ar(O) = 64 + 16 = 80
w(Cu) = Ar(Cu) /Mr(CuO) * 100% = 64/80 * 100% = 80%
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Ответ:
Объяснение:
Mr(CuO) = Ar(Cu) + Ar(O) = 64 + 16 = 80
w(Cu) = Ar(Cu) /Mr(CuO) * 100% = 64/80 * 100% = 80%