I need to write the net ionic equation?

dr.evil

New member
For each of the metal ions that reacted with the sulfate ion, (SO_4)^2- , write the net ionic equation and state the observation that indicates reaction had occurred.

I don't know what to do : '(

I know that its, Molecular Equation than Total Ionic Equation, and finally Net Ionic Equation. I'm so lost..

Example: Al^+3 added into Na_2SO_4

Or even: Ba^+2 + Na_2SO_4
 
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