What are examples of molecules formed by two elements?

Some examples of molecules mad up by two different elements include:

Water= 2 parts Hydrogen, 1 part Oxygen = H2O

Carbon dioxide= 1 part Carbon, 2 parts Oxygen = CO2

Methane = 1 part Carbon, 4 parts Hydrogen = CH4

Magnesium Oxide = 1 part Magnesium, 1 part Oxygen = MgO

Potassium Bromide = 1 part Potassium, 1 part Bromine = KBr