1)na→na2o→naoh→nano3 2)al→al2o3→alcl3→al(oh)3→naalo - вопрос №50499412322333 от BlackBear2517 15.01.2020 07:53

Question

Химия: 1)na→na2o→naoh→nano3 2)al→al2o3→alcl3→al(oh)3→naalo

BlackBear2517 · Answer

1)4Na+ O2=2Na2O Na2O+H2O=2NaOH NaOH+HNO3=NaHNO3+H2O     2) 4Al + 3O2 = 2Al2O3 Al2O3 + 6HCl= 2AlCl3 + 3H2O AlCl3 + 3NaOH = Al(OH)3↓ + 3NaCl NaAlO2 + 4HNO3 = NaNO3 + Al(NO3)3 + 2H2O  ...