Alkanes

• What is the general formula for alkanes?


  $CH_{2n+2}$
• What type of bonds do alkanes contain?


  Alkanes contain only single bonds.
• How are alkanes classified in terms of their hydrogen and carbon content?


  Alkanes are described as saturated hydrocarbons.
• What is the reactivity of alkanes?


  Alkanes are fairly unreactive.
• What happens when alkanes are burned?


  Alkanes burn well and release energy.
• What is the simplest alkane and its chemical formula?


  The simplest alkane is methane, with the formula $CH_{4}$.
• How many hydrogen atoms are in methane?


  There are 4 hydrogen atoms in methane.
• What is the chemical formula for ethane?


  The chemical formula for ethane is $C_{2}H_{6}$.
• How many carbon and hydrogen atoms are in ethane?


  Ethane is made up of 2 carbon atoms and 6 hydrogen atoms.
• What is the chemical formula for propane?


  The chemical formula for propane is $C_{3}H_{8}$.
• How many carbon and hydrogen atoms are in propane?


  Propane is made up of 3 carbon atoms and 8 hydrogen atoms.
• What is the chemical formula for butane?


  The chemical formula for butane is $C_{4}H_{10}$.
• How many carbon and hydrogen atoms are in butane?


  Butane is made up of 4 carbon atoms and 10 hydrogen atoms.
• What are the characteristics of shorter-chain alkanes as fuels?


  • Release energy more quickly by burning
  • Greater demand for them as fuels
• What is the bonding capability of carbon and hydrogen atoms?


  • Carbon atoms can make 4 bonds each.
  • Hydrogen atoms can make 1 bond each.
• How can alkanes be drawn?


  With a single line between atoms, which represents a single covalent bond
• Why is there a greater demand for the shorter chain alkanes?


  They release energy more quickly by burns so there’s greater demand for them as fuels
• Which hydrocarbon is this ?


  Methane

  
• Which hydrocarbon is this?


  Ethane

  
• Which hydrocarbon is this?


  Propane

  
• Which hydrocarbon is this?


  Butane

  
• What is the acronym for remembering the first 4 hydrocarbons?

  Monkeys

  Eat

  Pink

  Bananas