Starter - Organic Crossword Puzzle

QUESTIONS LIST:

• hydrocarbon : molecules made up of only carbon and hydrogen atoms
• single : alkanes only have _ bonds between carbon atoms
• complete : _ combustion produces carbon dioxide and water
• condense : short-chain hydrocarbons _ higher up in the fractionating column
• increases : boiling point _ as chain length increases
• butane : alkane with 4 carbon atoms
• energy : burning / combustion of hydrocarbons releases _
• steam : type of cracking where vapours are mixed with steam and heated to high temperatures
• crude oil : finite resource found in rocks / remains of ancient plankton buried in mud
• cracking : process that breaks down long-chain hydrocarbons into short-chain hydrocarbons
• monomer : small molecules that join to make very large molecules (polymers)
• fractions : fractional distillation separates crude oil into _
• alkenes : have a carbon-carbon double bond
• alkanes : homologous series with the general formula cnh2n+2
• methane : alkane with 1 carbon atom
• catalytic : type of cracking that passes vapour over a hot powdered aluminium oxide catalyst
• ethane : alkane with 2 carbon atoms
• propane : alkane with 3 carbon atoms