[streetlightm]

hello.

I am going nuts here trying to figure out net ionic equations to these reactions we performed in a lab. I'm not even sure that about most of the equations. Please Help.

1)Mg(s) + O2(g) --> 2MgO(s)
2)CaO(aq) + H2O(l) --> Ca(OH)2(s?)
3)CuSO4*5H2O(s) --> CuSO4*H2O + 4H2O(l)
4)H2SO4(aq) + Zn(s) --> ZnSO4(s?) + H2(g)
5)(Cu(NO3)2)(aq?) + Zn(s) --> ?
6)AgNO3(aq?) + Cu(s) --> ?
7)HCl(aq?) + Mg(s) --> ?
8)HCl(aq?) + AgNO3(aq?) --> ?
9)K2CrO4(aq?) + AgNO3(aq?) --> ?
10)K2CrO4(aq?) + (Pb(NO3)2)(aq?) --> ?
11)HCl(aq?) + (Pb(NO3)2)(aq?) --> ?

[streetlightm]

is it possible that all of them do not have ionic equations?

edit: now i realize that most of these cannot be put into ionic equations
i am sure that 8, 9, 10, 11 COULD be put into ionic equations

i do not understand if 7, 6, 5, 4 could be put into into ionic equations

im pretty sure that 1, 2, 3 cannot be put into ionic equations, but im not sure

any help is still greatly appreciated...

[AWK]

This is a more complex problem. Always elements are not ionic, water in most problems also. But MgO is ionic in crystal, Ca(OH)2 is ionic in crystal and in solution (it is a strong base), and so on.
Depending on the level of your chemistry, eg the first reaction is correct(wrong coefficient at Mg) or can be written in the form:
2Mg(s) + O2(g) --> 2(Mg2+O2-)(s)

In the case of soluble salts in water solution you must write down only those species thea react, eg:
10)CrO42-(aq) + Pb2+(aq) --> PbCrO4(s) or ( Pb²⁺CrO₄^2-)(s) )