HCl plus NaOH-NaCl plus H2O what is the balanced equation?

Answer 1

HCl + NaOH --> NaCl + H2O is balanced as you wrote it.But, since sodium is always soluble in water at temperatures below the boiling point of the solution, the net ionic equation for the reaction at temperatures lower than the boiling point would actually be:

HCl + OH- --> Cl- + H2O

Or, if the hydrochloric acid was already in solution, then simply

H+ + OH- ---> H2O

Answer 2

The balanced equation for the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH) is:

HCl + NaOH → NaCl + H2O