Question

write the chemical formula for by using Criss cross method.zinc nitrate, calcium carbonate, aluminium hydroxide, ammonium hydroxide,silver nitrate, copper carbonate, potassium oxide, iron, sulphate.

Answer 1

Zinc nitrate Zn(NO3)2
Calcium carbonate CaCO3
Aluminum hydroxide Al(OH)3
Ammonium hydroxide NH4OH
Silver nitrate AgNO3
Copper carbonate CuCO3
Potassium oxide K2O
Iron Fe
Sulphate SO4
Iron sulphate FeSO4

Answer 2

All the numbers are subscript here ----》

》Zinc nitrate Zn(NO3)2

》Calcium carbonate CaCO3

》Aluminum hydroxide Al(OH)3

》Ammonium hydroxide NH4OH

》Silver nitrate AgNO3

》Copper carbonate CuCO3

》Potassium oxide K2O

》Iron Fe

》Sulphate SO4

》Iron sulphate FeSO4