ASSIGNMENT ON ALKANES AND ALKENES

Some long Alkanes are cracked to produce shorter Alkanes and Alkenes.

Give three reasons why longer Alkanes are in less demand as fuels than shorter Alkanes?

Outline two ways long Alkanes are cracked?

Cracking is a thermal decomposition reaction. What does the term thermal decomposition mean?

Give some examples of the uses of the shorter Alkanes and Alkenes produced in Cracking?

Balance the following equations for reactions that can take place when Alkanes are cracked

C18H38 ----> C12H26 + C3H6

Alkenes are unsaturated hydrocarbons.

What does the term unsaturated mean?

What does the term HydroCarbon mean?

Explain why Alkenes are much more reactive than Alkanes?

Alkenes can be burned but they tend to burn with smoky flame. Why do they burn with smoky flames?