Cracking fractions of crude oil produces smaller alkane molecules and alkenes. Which of the following is an alkene?
  • C4H8
  • C22H44
  • C6H12
  • C10H22
Why are alkanes so useful as monomers?
  • Because alkanes contain only double bonds
  • Because alkanes contain only single bonds
  • Because alkanes contain at least one oxygen atom
  • Because alkanes contain at least one double bond between carbon atoms
How is a double bond represented?
  • **
  • --
  • =
  • oxo
How are polymers made from alkenes?
  • Polymers are one of the main products made by cracking crude oil
  • Polymers are made by adding lots of smaller molecules together in a long chain
  • Polymers are made by carrying out ordinary distillation on crude oil instead of fractional distillation
  • Polymers are made by using enzymes
What do scientists call the small molecules that are joined together to make polymers?
  • Monomers
  • Minimers
  • Monomols
  • Minimols
What monomer is used to make poly(propene)?
  • Ethene
  • Propene
  • Propane
  • Butane
Which of the following is a use for polymers?
  • Waterproof coatings for fabrics
  • Fillings for teeth
  • Dressings for wounds
  • All of the above
Which of the following is an advantage of polymers?
  • Polymers are not usually biodegradeable
  • Polymers are light
  • Polymers are often flexible
  • Color can be built into a polymer when it is made
How are scientists trying to make products made with polymers biodegradeable?
  • They are developing ways of chemically treating plastics as they go into landfill sites
  • They are developing methods of burning plastics that don't pollute the air
  • There is nothing that can be done to solve the problem
  • They are developing plastics that contain cornstarch as well as polymers
What is the most environmentally friendly way to dispose of your used plastic items?
  • Putting them into the bin
  • Recycling them
  • Burning them
  • Burying them
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