It takes 90.0 kwh (kilowatt-hours) of electrical energy to produce 6.00 kg aluminum metal from aluminum oxide by the hall-heroult process. what amount of energy is necessary to melt 6.00 kg aluminum metal? the enthalpy of fusion for aluminum metal is 10.7 kj/mol (1 watt = 1 j/s). kj

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.