Question

NaOH+H2SO=Na2SO4+4H2O

Answer 1

1)2NaOH+H2SO4=Na2SO4+2H2O  2)2Na+2OH+2H+SO4=2Na+SO4+2H2O   3)OH+H=H2O

Answer 2

The chemical equation you've written appears to be incorrect. It seems like you're trying to represent a reaction between sodium hydroxide (NaOH) and sulfuric acid (H2SO4) to produce sodium sulfate (Na2SO4) and water (H2O). However, the equation you've provided is not balanced. Here's the balanced chemical equation for this reaction:

2 NaOH + H2SO4 -> Na2SO4 + 2 H2O

In this balanced equation, you can see that two moles of sodium hydroxide react with one mole of sulfuric acid to produce one mole of sodium sulfate and two moles of water.