Properties of alkanes and compounds

What length chain of alkane has the highest boiling point?

The longer the chain of alkane the higher the boiling point.

What alkanes are the most viscous?

The alkanes with longer chemical chains are more viscous.

What does volatile mean?

It evaporates more easily due to the low boiling point.

What alkanes are the most flammable?

Shorter alkanes are the most flammable.

Why are alkanes good fuels?

They release a lot of energy when they burn.

What is complete combustion?

When a substance burns with a good supply of oxygen.

What is incomplete combustion?

When a substance burns with a poor supply of oxygen.

What is the word equation for complete combustion?

Alkane + oxygen → carbon dioxide + water

What is the word equation for incomplete combustion?

Alkane + Oxygen → Carbon monoxide + Water

Alkane + Oxygen → Carbon + Water

What are four properties of small alkanes?

• Low boiling points

• Runny

• Easy to ignite

• Burns with clean flame

What are four properties of large alkanes?

• High boiling points

• Viscous

• Hard to ignite

• Burns with smoky flame