1 2 3 Na-Na2O-NaOH-NaCl /_____4______/

Question

1 2 3
Na-Na2O-NaOH-NaCl
/_____4______/

Answer 1

4na + o2 = 2na2o
na2o + h2o = 2naoh
naoh + hcl = nacl + h2o
na+ hcl = nacl