Ответ:
Объяснение:
Mr(Cu2O) = 64*2 + 16 =144
Mr(AlCl3) = 27 + 35,5*3 =133,5
Mr(Ba3N2) = 137*3 + 14*2 =439
Mr(KNO3) = 39 + 14 + 16*3 =101
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Ответ:
Объяснение:
Mr(Cu2O) = 64*2 + 16 =144
Mr(AlCl3) = 27 + 35,5*3 =133,5
Mr(Ba3N2) = 137*3 + 14*2 =439
Mr(KNO3) = 39 + 14 + 16*3 =101