Naming
# of Hydrogens
Physical properties of Alkanes
Alkane
Overall facts
100

What is the following molecule named?

Methane

100

If the molecule has 1 Carbon, how many Hydrogens would it have?

4

100

What do all alkanes end with (last 3 letters)?

-ane

100

What is the general formula for Alkane?

CNH2n+2

100

What is a hydrocarbon?

A molecule made up of carbon and hydrogen

200

What is the name of the following?


Butane

200

If the molecule has 4 Carbon, how many Hydrogens would it have?

10

200

Are alkanes heavier or lighter than water?

Lighter

200

What type of bond does an alkane have?

Single-Bond

200

What bond does an alkene have?

Double bonds

300

What is the name of the following?

Hexane

300

If the molecule has 10 Carbon, how many Hydrogens would it have? *BONUS: what would it be called?*

Answer= 22

Bonus= Decane

300

Do Alkanes dissolve in water? If no, what do they dissolve in? If yes, how quickly do they dissolve?

No, they dissolve in non-polar solvents because they are nonpolar molecules.


300

What are the different groups of Alkanes?

The groups are linear straight-chain alkanes, branched alkanes, and cycloalkanes.

300

What bond defines an alkyne?

Triple bond

400

What is the name of the following?

2-methyl hexane

400

How many Hydrogens does hexane have?

14

400

What colour are alkanes?

Colourless

400

Are alkanes saturated?

Yes

400

How many types of Aliphatic hydrocarbons are there? Bonus: What are the different types of Aliphatic hydrocarbons?

There are 3 types of Aliphatic hydrocarbons. Alkane, alkene, and alkynes

500

Name the following


4-ethyl-3-methylheptane

500

How many hydrogens does Octane have?

18

500

How do the boiling points of Alkanes change with chain size?

Bonus: how do the number of branches on alkanes affect boiling point?

As the carbon chain gets longer, there are more electrons in a molecule. This means that there are more (relatively) stronger intermolecular forces between the molecules. As a result, it takes more energy to break these forces, and thus the melting or boiling points increase. 

Bonus: For isomers, the more branched the chain, the lower the boiling point tends to be. 

500

How do alkanes benefit society?

They help heat our houses, move our cars, and drive our economy.

500

If there are over 26 Carbons, what is the boiling point of the alkane?

Over 400o C

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