Ответы на вопрос:
1) 2al + 3cl2 =2 alcl3 alcl3 + 3naoh = al(oh)3 + 3nacl al(oh)3 + naoh = naalo2 + 2h2o naalo2 + 4hno3 = al(no3)3 + nano3 + 2h2o 2al(no3)3 = al2o3 + 3n2o5 2al2o3 = 4al + 3o2 2al + 6h2o = 2al(oh)3 + 3h22) 2al + 3h2so4 = al2(so4)3 + 3h2 al2(so4)3 + 3bacl2 = 3baso4 + 2alcl3 alcl3 + 3naoh = al(oh)3 + 3nacl al(oh)3 + naoh = na[al(oh)4] na[al(oh)4] + 4hno3 = al(no3)3 + nano3 + 4h2o 4al(no3)3 = 2al2o3 + 12no2 + 3o2 al2o3+2cr = cr2o3+2al2al + 2koh + 6н2о = 2k[al(oh)4] + зн 2 3) 4al + 3c = al4c3 al4c3 + 12h2o = 4al(oh)3 + 3ch4 al(oh)3 + naoh = na[al(oh)4]na[al(oh)4] = al(oh)3 + naoh 3hbr + al(oh)3 = 3h2o + albr3 albr3 + k3po4 = alpo4 + 3kbr
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