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GCSE Chemisty*** > Alkanes > Flashcards

Flashcards in Alkanes Deck (10):
1

What is a hydrocarbon

Molecules that are made up of hydrogen and carbon atoms only

2

What are the five alkanes

- methane
- ethane
- propane
- butane
- pentane

3

What is a homologous series

Group of compounds that can all be represented by the same general formula

4

Describe the complete combustion of alkanes

- occurs when there plenty of oxygen
- alkane + oxygen -> CO2 + water
- burns with a clean blue flame

5

Describe the incomplete combustion of alkanes

- alkane + oxygen -> carbon + CO2 + carbon monoxide + water
- burns with a smoky yellow flame

6

When do halogens react with alkanes

In the presence of ultraviolet light

7

What occurs in the reaction between halogens and alkanes

Or a hydrogen atom is replaced with one of the Halogen and atoms

8

What is the reaction between the halogens and alkanes

Substitution reaction

9

What increases with more carbon atoms

Boiling point and smokiness of flame

10

The general formula of alkanes

CnH2n+2