Alkenes such as ethene are obtained from hydrocarbons such as $\mathrm{C_{12}H_{26}}$. Name this process.
Describe the conditions in which this process is carried out.
Ethene reacts with steam to form ethanol, and the reaction is reversible. $\mathrm{C_2H_4}(g)+\mathrm{H_2O}(g)\rightleftharpoons\mathrm{C_2H_5OH}(g)$. Describe and explain the effect of increasing the temperature on the rate of the forward reaction.
Describe and explain the effect of increasing the pressure on the position of equilibrium while keeping the temperature constant.
Ethene is used in the manufacture of the polymer poly(ethene). This polymer is used to make plastics. Draw the structure of poly(ethene). Your structure should include two repeat units.
State two environmental challenges brought about by the disposal of poly(ethene).
Ethene reacts with hydrogen in the presence of a nickel catalyst. Explain why this counts as an addition reaction.
Draw the displayed formula for the product of this reaction.