crude oil and hydrocarbons

• What is meant by a hydrocarbon?

  Molecules made of hydrogen and carbon
• What is an alkane?

  A type of hydrocarbon
• What are some products derived from crude oil?

  Plastics, petrol, pharmaceuticals, cosmetics
• How is crude oil formed?

  From remains of tiny sea creatures buried in mud
• What is the nature of crude oil as a resource?

  It is a finite resource
• What is the formula for methane?

  CH4
• What do covalent bonds represent in methane?

  Bonds between carbon and hydrogen atoms
• What is the definition of a hydrocarbon?

  Molecules made up of hydrogen and carbon atoms only
• What are hydrocarbons like methane and ethane called?

  Alkanes
• What is the general formula for alkanes?

  CnH2n+2
• If an alkane has 1 carbon atom, how many hydrogen atoms does it have?

  4 hydrogen atoms
• How many hydrogen atoms does ethane have if it has 2 carbon atoms?

  6 hydrogen atoms
• How many hydrogen atoms does propane have with 3 carbon atoms?

  8 hydrogen atoms
• How many hydrogen atoms does butane have with 4 carbon atoms?

  10 hydrogen atoms
• Why are alkanes described as saturated molecules?

  Carbon atoms are fully bonded to hydrogen atoms
• What are the first 4 alkanes?

  • Methane
  • Ethane
  • Propane
  • Butane