Question

помогите пожалуйста ​

Answer 1

Na-Na2O-NaOH-Na2SO4-NaCl

1) 2Na + Na2O2 => 2Na2O

1) Na2O + H2O => 2NaOH

3) 2NaOH + H2SO4 => Na2SO4 + 2H2O

4) Na2SO4 + BaCl2 => BaSO4 + 2NaCl