crude oil and hydrocarbons

• What is meant by a hydrocarbon?

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

  A type of hydrocarbon with single bonds
• What products are derived from crude oil?

  • Plastics
  • Petrol
  • Pharmaceuticals
  • Cosmetics
• Where is crude oil found?

  In rocks
• Why is crude oil considered a finite resource?

  It will eventually run out
• How is crude oil formed?

  From remains of tiny sea creatures
• What are plankton?

  Tiny sea creatures that form crude oil
• What is the formula for methane?

  $CH_4$
• What does the structural formula of methane show?

  One carbon atom bonded to four hydrogens
• What is the definition of a hydrocarbon?

  Molecules made up of hydrogen and carbon
• What is the name of the hydrocarbon with the formula $C_2H_6$?


  Ethane
• What are alkanes?

  Hydrocarbons like methane and ethane
• What is the general formula for alkanes?

  $C_nH_{2n+2}$
• If an alkane has one carbon atom, how many hydrogen atoms does it have?

  Four hydrogen atoms
• How many hydrogen atoms does ethane have if it has two carbon atoms?

  Six hydrogen atoms
• How many hydrogen atoms does propane have with three carbon atoms?

  Eight hydrogen atoms
• How many hydrogen atoms does butane have with four carbon atoms?

  Ten hydrogen atoms
• Why are alkanes considered saturated molecules?

  Carbon atoms are fully bonded to hydrogens
• Which alkane structures should you memorize for the exam?

  • Methane
  • Ethane
  • Propane
  • Butane
• How does the formation of crude oil relate to the concept of finite resources?

  Crude oil forms over millions of years