Name the process used to separate petroleum into its useful fractions.
State one use for fuel oil.
Draw a circle around the compound that is the main constituent of natural gas.\n\ncarbon dioxide ethane ethanol methane
Describe how long chain hydrocarbon molecules can be changed into short chain molecules. Include in your answer:\n• the name of this process\n• the conditions needed for this process to happen\n• the products of this process.
State one reason why long chain hydrocarbon molecules are converted into short chain hydrocarbon molecules.
Draw the displayed formula for a molecule of ethane.
State two conditions needed for fermentation.
State one use for ethanol.
Deduce the molecular formula for this molecule.
Explain why the molecule shown in Fig. 4.1 is unsaturated.