True: Hydrocarbons are compounds made from hydrogen and carbon atoms only, Alkanes and alkenes are two types of hydrocarbon, Carbon atoms always form four bonds, Hydrogen atoms always form one bond, The general formula for alkanes is CnH(2n+2), The general formula for alkenes is CnH2n, 'Meth' means one carbon atom, 'Eth' means two carbon atoms, 'Prop' means three carbon atoms, 'But' means four carbon atoms, 'Pent' means five carbon atoms, The molecular formula for ethane is C2H6, The molecular formula for ethane is C2H4, An alkane with six carbon atoms has the formula C6H14, An alkene with seven carbon atoms has the formula C7H14, Alkanes are saturated (contain the maximum possible number of hydrogen atoms), Alkenes are unsaturated (contain less than the maximum number of hydrogen atoms), Alkanes only have C-C single bonds, Alkenes have at least one C=C double bond, All bonds in hydrocarbons are covalent, False: 'Prop' means four carbon atoms, Carbon atoms can sometimes form five bonds, Hydrogen atoms can form double bonds with other atoms, All bonds between carbon atoms in alkenes are double bonds, Alkanes contain at least one C=C double bond, Atoms in hydrocarbons are joined by ionic bonds, The general formula for alkenes is CnH(2n+2), The general formula for alkanes is CnH2n, Hydrocarbons always contain hydrogen and carbon atoms, but can also contain oxygen atoms, An alkene with eight carbon atoms has the formula C8H16, An alkane with 10 carbon atoms has the formula C10H20, The molecular formula for pentane is C4H10, The molecular formula for propene is C3H8, Another name for 'molecular formula' is 'structural formula', Alkenes are unreactive because of their double bonds, Alkanes are unsaturated, Alkenes are saturated, Alkanes make very poor fuels,

HYDROCARBONS

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