[spunkylulu]

I'm having trouble with net ionic equations.  I know the principles of net ionic equations (spectator ions aren't included) but how do I know which ions are spectators and which are hydrolyzed? 

For example: Copper (II) nitrate and Water: Cu(NO3)2 + H2O --> 2HNO3 + CuO, correct?  If so, what is the net ionic equation?  I'm really confused!

[Borek]

This is not a correct reaction equation if you ask me (CuO is an unlikely product here).

But, first of all - why don't you write all things that are dissociated as dissociated?

[spunkylulu]

Okay so..

Cu + 2NO3 + H2O --> what?  I'm so confused!  I wish my professor would teach us these things.

[Borek]

You are ignoring charges - that will never help you.

What do you know about copper hydroxide? Its solubility?

[spunkylulu]

It's insoluble, right?  Cu(OH)₂?

[Borek]

Yes.

[spunkylulu]

I'm really lost, can you provide me with some guidance?

[Borek]

Hydrolysis means copper will - to some extent - react with water, producing insoluble hydroxide (and something else).