Alkanes Flashcards
1
Q
What is a hydrocarbon
A
Molecules that are made up of hydrogen and carbon atoms only
2
Q
What are the five alkanes
A
- methane
- ethane
- propane
- butane
- pentane
3
Q
What is a homologous series
A
Group of compounds that can all be represented by the same general formula
4
Q
Describe the complete combustion of alkanes
A
- occurs when there plenty of oxygen
- alkane + oxygen -> CO2 + water
- burns with a clean blue flame
5
Q
Describe the incomplete combustion of alkanes
A
- alkane + oxygen -> carbon + CO2 + carbon monoxide + water
- burns with a smoky yellow flame
6
Q
When do halogens react with alkanes
A
In the presence of ultraviolet light
7
Q
What occurs in the reaction between halogens and alkanes
A
Or a hydrogen atom is replaced with one of the Halogen and atoms
8
Q
What is the reaction between the halogens and alkanes
A
Substitution reaction
9
Q
What increases with more carbon atoms
A
Boiling point and smokiness of flame
10
Q
The general formula of alkanes
A
CnH2n+2
