Write the formula of these reactions or write no reaction if there is none
1. BaCl2 +HN03
2. BaCl2 +NaCH3C02
3. NH3 +NaOH
4. Na2C03 + NaOH
5. NaOH + NaCH3C02
6. NH3 +NH4Cl
7. NH3+AgNO3
8. NH3+ Na2C03
9. NH4Cl +HCl
10. NH4Cl +HN03
11. NH4Cl+CuSO4
12. NH4Cl +Na2CO3