I need net ionic equations for the following a 2K3PO4aq3CaNO

I need net ionic equations for the following:

a) 2K3PO4(aq)+3Ca(NO3)2(aq)-->Ca3(PO4)2(s)+6KNO3(aq)

b)2Al(s)+3H2SO4(aq)-->3H2(g)+Al2(SO4)3(aq)

c)Na2CO3(aq)+2HCl(aq)-->2NaCl(aq)+H2O(l)+CO2(g)

Solution

1)

Ionic-
3Ca(2+)(aq) + 6NO3(-)(aq) + 6K(+)(aq) + 2PO4(-3)(aq) ---> Ca3PO4(s) + 6K(+)(aq) + 6NO3(-)(aq)
Net Ionic-
3Ca(2+)(aq) + PO4(-3)(aq) ---> Ca3PO4(s)
NO3- and K+ are spectator ions.

2)

2Al(s) + 6H(1+)(aq) ----> 2Al(3+)(aq) + 3H2(g)

3)

CO3 2-(aq)+2H+(aq)-->+H2O(l)+CO2(g)