Question

Sulfuric acid, H2SO4(aq), can be used to neutralize barium hydroxide, Ba(OH)2(aq). What is the formula for the salt produced by this neutralization?
(1) BaS (3) BaSO3
(2) BaSO2 (4) BaSO4

Answer 1

     Firstly, we must to separate the ions:

$H_{2}SO_{4}+Ba(OH)_{2}-\ \textgreater \ 2H^{+}+SO_{4}^{2-}+Ba^{2-}+2(OH)^{-}$
 
     The neutralization reaction forms water and salt, therefore:

$H_{2}SO_{4}+Ba(OH)_{2}-\ \textgreater \ 2H_{2}O+\boxed {BaSO_{4}}$

If you notice mistake in my english, please let me know, because i am not native.

Answer 2

Here is a balanced equation: Ba(OH)2 (aq)+ H2SO4 (aq)-> BaSO4 (s)+ H2O (l)

Therefore, the salt produced from this equation is (4) BaSO4.

Hope this helps~