Could someone help me with this question its quite hard

A student has a mixture of Ca(oh)2 and Cuso4. What observations will he observe when he adds each of the foloowing:

1. Water
2. Nitric Acid
3. Filter the mixture with H2SO4
4. Use this filter and add ammonia
5. Use this filter and add KI
6. Use this filter and add Fehlings Solution and place in a water bath.

i'm not sure but the first thought i receive from this is

reactions.

 

but i'm not sure.

A good place to start would be to look up the pH of these solutions, look up ka/pka values, look at their positions on the periodic table, and historical observations (text book perhaps?). I'm guessing the answers your teacher/professor will be looking for are things like color changes, phase changes, formation of precipitate, bubbling etc. Read your lab book/text book carefully keeping in mind the things I've mentioned.... I'm not getting more specific, not because I'm a jerk, but because I'd have to do what I've described above to figure it out, and its not my homework