Ответ:Mr(Mn(OH)2) = 55 + 16*2 + 1*2 = 89
W(Mn) = Ar(Mn) * n / Mr(Mn(OH)2) *100% = 55 *1 / 89 *100% =
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Ответ:Mr(Mn(OH)2) = 55 + 16*2 + 1*2 = 89
W(Mn) = Ar(Mn) * n / Mr(Mn(OH)2) *100% = 55 *1 / 89 *100% =