Ответ:
Объяснение:
Mr(AlCl3) = 27 + 35,5*3=133,5
Mr(Fe2O3) = 56*2 + 16*3 =160
Mr(HNO3) = 1+14+16*3 = 63
Mr(Ca(OH)2) = 40 + 16*2 + 1*2 =74
Mr(Ba(OH)2) =137 + 16*2+1*2 =171
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Ответ:
Объяснение:
Mr(AlCl3) = 27 + 35,5*3=133,5
Mr(Fe2O3) = 56*2 + 16*3 =160
Mr(HNO3) = 1+14+16*3 = 63
Mr(Ca(OH)2) = 40 + 16*2 + 1*2 =74
Mr(Ba(OH)2) =137 + 16*2+1*2 =171