Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of H2SO4 and KOH are mixed. a. H+(aq) + OH -(aq) → H2O(l)
b. 2K+(aq) + SO42-(aq) → K2SO4(s)
c. H+(aq) + OH-(aq) + 2K+(aq) + SO42-(aq) → H2O(l) + K2SO4(s)
d. H2^2+(aq) + OH-(aq) → H2(OH)2
e. No reaction occurs.

a. H⁺(aq)+ OH⁻(aq) →  H₂O(l)

Explanation:

First, we will write the molecular equation for the reaction between H₂SO₄ and KOH.

H₂SO₄(aq) + 2 KOH(aq) →  K₂SO₄(aq) + 2 H₂O(l)

The complete ionic equation includes all the ions and the molecular species.

2 H⁺(aq) + SO₄²⁻(aq) + 2 K⁺(aq) + 2 OH⁻(aq) →  2 K⁺(aq) + SO₄²⁻(aq) + 2 H₂O(l)

The net ionic equation includes only the ions that participate in the reaction and the molecular species.

H⁺(aq)+ OH⁻(aq) →  H₂O(l)

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-