[Tymed]

today my teacher did a lesson on hydrolysis predictions, and I did not understand any of it, which also happens to be on my test tomorrow.  

This is what he did, there's a table with columns, salt formula, reaction with water, acidic/basic or neural, and color.

In the first the row salt formula is KNO₃. Next is the reaction is water, he writes two equations, one being, K⁺ + OH ^-   KOH (strong base), which is not possible; the second equation is NO₃^- + H⁺   HNO₃ (strong acid), which also is not possible. Then beside that was stating weather is was acidic, neutral or basic, in this case is was basic. And then the color, which has green/yellow.

can somone explain what happens?   why is the reaction in water split in two, and why is the solution neutral?

[Arkcon]

I'd ask you to try to recreate the table, both to better explain the concept, and for your own practice.  I know I'd like to see another example to try to figure out what it means.  But you are in a hurry ...

I suppose, the point is that hydrolysis reactions happen when the components react with H+ or OH- from water.  If that's what the table is trying to describe, I'd like to see an example of a hydrolysis reaction that does proceed.