Write out a balanced, molecular equation, total ionic equation, and net ionic equation for each:

1. Mg(NO3)2(aq) + Na2CO3(aq) -->

2. AgNO3(aq) + KCl(aq) -->

3. Al(s) + HCl(aq) -->

4. HNO3(aq) + Na2CO3aq) -->