What is a Hydrocarbon? What are Alkanes?

• What area of chemistry focuses on compounds containing carbon?

  Organic chemistry
• Why is carbon considered useful for making large compounds?

  It can form four strong bonds
• What are hydrocarbons defined as?

  Compounds formed from carbon and hydrogen only
• What is the name of the hydrocarbon with the formula C4H10?

  Butane
• Why is butanol not classified as a hydrocarbon?

  It contains an oxygen atom
• What is the simplest alkane?

  Methane
• How many hydrogen atoms are in ethane?

  Six hydrogen atoms
• What is the molecular formula for propane?

  C3H8
• How do the number of carbon and hydrogen atoms change in alkanes?

  Increase by one carbon and two hydrogens
• What is the general formula for alkanes?

  CnH2n+2
• If n equals 3, how many hydrogen atoms are in the alkane?

  Eight hydrogen atoms
• What is the molecular formula for octane?

  C8H18
• What does it mean for alkanes to be saturated compounds?

  All carbon atoms have four single bonds
• What happens if a single bond in propane is changed to a double bond?

  It becomes an alkene
• What are the first four alkanes in the series?

  1. Methane (C1H4)
  2. Ethane (C2H6)
  3. Propane (C3H8)
  4. Butane (C4H10)
• What is a homologous series in organic chemistry?

  • Groups of organic compounds
  • Similar properties
  • React in similar ways
• What are the key features of alkanes?

  • Saturated compounds
  • No double bonds
  • General formula: CnH2n+2
• What will be covered in the next video after alkanes?

  • Properties of alkanes
  • Writing combustion equations