Допишите уровнения Na+H2... So3+H2O... Al+HBr... KMnO4 Cs2O+H2O Cs+H2O
2Na +H2=2NaH SO3 + H2O= H2SO3 2Al + 6HBr= 2AlBr3 +3H2 Cs2O+H2O=2HCs+O2 2Cs + 2H2O= 2CsOH +H2