| What is a Homologous Series? | -This is simply a Group that just has Similar Chemical Structures |
| What are Alkanes? | -This is a Homologous Series of Saturated Hydrocarbons [Just has Carbons and Hydrogen Atoms] |
| List the first 4 Alkanes, from the Smallest Size upwards | -Methane: CH₄
-Ethane: C₂H₆
-Propane: C₃H₈
-Butane: C₄H₁₀ |
| What does it mean if the Alkanes are Saturated? | -They have formed the Maximum Bonds they Possibly can with Other Atoms [Single Bonds] |
| What is the General Formula for Alkanes? | -Its simply CₓH₂ₓ₊₂
-X is simply the Term. |
| What happens to Alkanes in a Complete Combustion? Give the Equation | -They simply Burn in Oxygen to make Carbon Dioxide and Water
-C₂H₆ + 3.5O₂ --> 2CO₂ + 3H₂O |
| What happens to Alkanes in a Incomplete Combustion? Why can it happen? Give the Equation | -This is when not enough Oxygen is Present, creating Carbon Monoxide
-C₂H₆ + 2.5O₂ --> 2CO + 3H₂O |
| What are Alkenes? | -This is a Homologous Series that has at least a Double Bond with Carbon |
| What does it mean if Alkenes are Unsaturated? | -This is because they can make more Bonds, as the Double Bond can Break up allowing two more Atoms to join up [Hydrogen, Chlorine..] |
| Give the First 4 Alkenes, starting from the Smallest. | -Ethene, C₂H₄
-Propene, C₃H₆
-Butene, C₄H₈
-Pentene, C₅H₁₀ |
| What is the General Formula for Alkenes? | -CₓH₂ₓ |
| How can you Test for Alkenes? Give the Equation | -Simply just add Bromine Water to it, which will go Colourless if it Reacts with an Alkene.
-This is due to the Double Bond being able to Open Up and and make Bonds with the Bromine
-C₂H₄ + Br₂--> C₂H₄Br₂
-Colourless + Orange --> Colourless |
| What happens in Hydrogenation, with the Alkene? Give the Equation when it happens with Ethene. | -This is simply the Process that has Hydrogen react with Alkenes
-Ethene + Hydrogen --> Ethane
-C₂H₄ + H₂ ---> C₂H₆ |
