Alkanes - properties and combustion Flashcards
1
Q
What is an alkane?
A
It is the simplest type of hydrocarbon and is a saturated compound as it has C-C single bonds.
2
Q
What is the general formula for alkanes?
A
Cn H2n +2
3
Q
What are the first 4 alkanes?
A
Methane C H4
Ethane C2 H6
Propane C3 H8
Butane C4 H10
4
Q
What are the properties of short hydrocarbons?
A
They are volatile - low boiling point
They are runny - low viscosity
They are flammable
5
Q
When does complete combustion occur?
A
When there is a good supply of oxygen.
6
Q
What is the word equation for complete combustion?
A
Hydrocarbon + Oxygen to Carbon Dioxide + Water
7
Q
Is combustion an exothermic or endothermic reaction?
A
Exothermic.
