Ответ:
Объяснение:
Мr(H2O) = Ar(H) * 2 + Ar(O) = 1 * 2 + 16 = 18
w(O) = Ar(O) * n / Мr(H2O) * 100% = 16/18 * 100% = 88,89%
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Ответ:
Объяснение:
Мr(H2O) = Ar(H) * 2 + Ar(O) = 1 * 2 + 16 = 18
w(O) = Ar(O) * n / Мr(H2O) * 100% = 16/18 * 100% = 88,89%