Describe the major similarities and differences
between ionic, covalent and
metallic bonding, in terms of
the types of elements
involved and what holds the
atoms / particles together.

Butane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). if you mix butane and oxygen in the correct stoichiometric ratio, and if the total pressure of the mixture is 390 mmhg, what is the pressure (in mmhg) of water vapor after the reaction is completed (temperature and volume do not change).