Do chemistry books always simplify the equation as net ionic equation in solution area?

Such as NaOH+H2O---->Na+ +OH- + H2O

it simplifies as NaOH--->Na++OH

It is in contrast as HCl, and it makes me confused for a while.

By the way, is all reaction involved heat ?

it should be NaOH --H2O--> Na+ + OH-

all reactions involve heat changes

it should be NaOH --H2O--> Na+ + OH-

Not this ?NaOH+H2O---->Na+ +OH- + H2O

no. the H2O is only relevant because it is what causes the decomposition

How can you determine whether the reactants goes displacement or not?

Can you teach me some skills?

Such as NaCl(s)+H2O(l)--->NaCl(aq) instead of reacting.

things tend to not react with water, per se. if there is an "ionic" bond, it should dissociate.

Thanks