Determine whether a reaction will take place in the following and write a complete balanced equation: You must include phase labels.?

Update: Determine whether a reaction will take place in the following and write a complete balanced equation: You must include phase labels. Use NR for no reaction.
1.) Ca(OH)2 (aq) + Al(NO3)3 (aq) →
2.) Cu(C2H3O2)2 (aq) + Na2SO4 (aq) →
3.) H2SO4 (aq) + KOH (aq) →
4 answers 4