What is the corect product when 2Nacl + 2H2O = NaOH + H2 + Cl2 Nacl + H2o = NaOH + HCl Which is corect ?

In fact neither is correct. Sodium chloride does not hydrolyze water.

When NaCl is dissolved in water, ionization occurs to form aquated ##Na^+##, and ##Cl^-## ions.

We could represent the reaction as follows:

##NaCl rarr Na^(+)(aq) + Cl^(-)(aq)##.

##Na^(+)(aq)## represents the aquated sodium ion, which we could formulate as ##[Na(OH_2)_6]^+##, that is 1 sodium ion surrounded by, or aquated by 6 water molecules. No acid/base chemistry occurs.