Answer:
a) Potassium dichromate - K+ Cr2O72-
b) Aluminum phosphate - Al3+ PO43-
c) Sodium plumbite - Na+ PbO32-
d) Ammonium sulphate - NH4+ SO42-
e) Barium carbonate - Ba2+ CO32-
1) Nitric acid - H+ NO3-
g) sulphuric acid - H+ SO42-
h) Calcium nitride - Ca2+ N3-
i) Sodium nitride - Na+ N3-
i) Ammonium chloride - NH4+ Cl-
Explanation: