deduce the molecular and/or empirical formula of a compound, given its structural, displayed or skeletal formula

describe: (a) the complete and incomplete combustion of alkanes (b) the free-radical substitution of alkanes by \( Cl_2 \) or \( Br_2 \) in the presence of ultraviolet light, as exemplified by the reactions of ethane

describe the relative thermal stabilities of the hydrogen halides and explain these in terms of bond strengths