What are compounds
2 or more different elements chemically bonded together
Carbon dioxide formula
CO2
Ammonia formula
NH3
Water formula
H2O
Sodium chloride formula
NaCL
Carbon monoxide formula
CO
Hydrochloric acid formula
HCL
Calcium chloride formula
CaCl2
Sodium carbonate formula
Na2CO3
Sulphuric acid formula
H2SO4