posted by duane .
Is this balanced correctly NaOH + H2SO4 = Na2SO4 + H2O?
In this equation, Sodium (Na) and Hydrogen (H) atoms are not balanced. There are 2 atoms of Sodium (Na) on Right Hand Side, so we can multiply NaOH with 2 on Left Hand Side. This balances the Sodium (Na) atoms. Now, Hydrogen (H) and Oxygen (O) atoms are unbalanced. Again, we multiply 2 with Water on Left Hand Side. Thus all the elements are balanced.
2NaOH + H2SO4 ------> Na2SO4 + 2H2O