water
H2O
carbon dioxide
CO2
sulfur dioxide
SO2
methane
CH4
hydrochloric acid
HCl
sulfuric acrid
H2SO4
nitric acid
HNO3
ethanoic acid
CH3CO2H
ammonia
NH3
ammonium chloride
NH4Cl
sodium hydroxide
NaOH
sodium chloride
NaCl
sodium carbonate
Na2CO3
sodium hydrogencarbonate
NaHCO3
sodium sulfate
Na2SO4
copper(II) oxide
CuO
copper(II) sulfate
CuSO4
calcium hydroxide
Ca(OH)2
calcium carbonate
CaCO3
calcium chloride
CaCl2