A homologous series is a family of compounds with the ____ general formula and ____ chemical properties. Within a homologous series, as the molecule size ____ there is an increase in their melting and boiling points. This pattern is because of increasing strength of the ____. Hydrocarbons are compounds containing ____ hydrogen and carbon atoms. Compounds containing only ____ carbon–carbon bonds are described as saturated. Compounds containing at least one carbon–carbon double bond are described as ____. ____ compounds decolourise bromine solution quickly. Alkanes are a homologous series of ____ hydrocarbons which are commonly used as fuels. They are ____ in water can be represented by the general formula ____ Cycloalkanes are a homologous series of ____, cyclic hydrocarbons which are used as fuels and solvents. They are ____ in water can be represented by the general formula ____ Alkenes are a homologous series of ____ hydrocarbons which are used to make ____ and alcohols. They are ____ in water and contain the C=C double bond functional group and can be represented by the general formula CnH2n Alkenes undergo addition reactions. The reaction with hydrogen forming ____, known as hydrogenation with ____ forming dihaloalkanes with ____ forming alcohols, known as hydration Alcohols are used as ____ as they are highly ____ and burn with very clean flames. Alcohols are often used as solvents. Methanol, ethanol and propanol are miscible with ____, thereafter the solubility ____ as size increases. As alcohols ____ in size their melting and boiling points increase due to the increasing strength of the ____. An alcohol is a molecule containing a ____ functional group, ____group. Saturated, straight-chain alcohols can be represented by the general formula ____. Carboxylic acids are used in the preparation of preservatives, soaps and medicines. Vinegar is a solution of ____ acid, with molecular formula CH3COOH. Methanoic, ethanoic, propanoic and butanoic acid are ____ in water, thereafter the solubility decreases as size ____. As carboxylic acids increase in size their melting and boiling points increase due to the increasing strength of the ____. Carboxylic acids can be identified by the ____ functional group, ____. Saturated, straight-chain carboxylic acids can be represented by the general formula ____. A reaction or process that ____ heat energy is described as exothermic. A reaction or process that takes in heat energy is described as ____. In combustion, a substance reacts with ____ releasing energy. Hydrocarbons and alcohols burn in a plentiful supply of oxygen to produce ____ and water.

national 5 chemistry unit 2

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