Unit 2: Burning questions

Question 1

What is an alkane?

Answer 1

Alkane is a homologous series of hydrocarbons. They have similar chemical properties, and they tend to follow a general formula which is: CnH2n+2.
C - C

Question 2

What are saturated and unsaturated hydrocarbons?

Answer 2

Saturated hydrocarbons: are carbon atoms joined together by a single bond. (Alkane)

Unsaturated hydrocarbons: Contain a C = C double bond. (Alkene)

Both: Are compounds containing hydrogen and carbon atoms only.

Question 3

What is Ethane’s formula?

Answer 3

C2H6

Question 4

Describe the results of using bromine water to test for unsaturations in a hydrocarbon?

Answer 4

If hydrocarbon has unsaturations, bromine water goes from brown to colorless, if hydrocarbon is fully saturated, bromine water remains brown.