Lesson: Hydrocarbons

Hydrocarbons

​Reperesenting Hydrocarbons

• Prefix:

  determine the number fo C

​Subfix:
-ane tells it is an alkane (all C-C single bonds)
-ene tells it is an alkene (at least 1 C-C double bond)
-yne tells it is an alkyne (at least 1 C-C triple bond)

​Naming hydrocarbons is based on the number of C in the hydrocarbon chain.

​Hydrocarbon Nomenclature

​Example:
1) C-C-C-C
Thinking:
4 carbons prefix is but-
All single bonds suffix is -ane
So this is butane

​Example:
2) C-C-C-C=C
Thinking:
5 carbons prefix is pent-
There is a double bond suffix is -ene
So this is pentene
Since the double bond can be at different places, we need to designate where the double bonds is. This is done by numbering the C. In this case from right to left since the double bond is closes to the right. So the of this molecule is acutally 1-pentene.

Multiple Choice

Is the name of single bonded, saturated hydrocarbons.

• Alkanes

• Alkenes

• Alkynes

• Tanins

Multiple Choice

Is the name of doubled bonded, unsaturated hydrocarbons.

• Alkanes

• Alkenes

• Allkynes

• Tanins

Multiple Choice

Is the name of triple bonded, unsaturated hydrocarbons.

• Alkanes

• Alkenes

• Alkynes

• Tanins

Multiple Choice

is the alkene with 3 carbons in its chain.

• Ethene

• Propene

• Methene

• Decene

Multiple Choice

Is the simplest alkane

• Ethane

• Methane

• Propane

• Decane

Multiple Choice

What is the correct name for the alkyne shown?

• butyne

• 1-butyne

• 2-butyne

• 1-methyl-1-propyne

Multiple Choice

How many carbon atoms are in ethane?

• 1

• 2

• 3

• 4

Multiple Choice

How many carbon atoms are in methane?

• 1

• 2

• 3

• 4

Multiple Choice

Hydrocarbons are compounds that contain

•   Carbon and Nitrogen

• Carbon and Hydrogen 

•   Carbon, and Oxygen

• Carbon, Oxygen, and  Hydrogen 

Multiple Choice

Which of the following elements must be present in any organic compound?

• Carbon

• Oxygen

• Potassium

• Hydrogen

Multiple Choice

Which of the following compounds is an example of hydrocarbon?

• CO₂

• C₂H₆

• C₂H₅OH

• CH₃COOH