On your mini-whiteboards are these true or false?

1. Gas and oil are the only types of fossil fuels2. Sulfur dioxide causes acid rain that will kill

plants and aquatic life.3. Small hydrocarbons have large boiling points

because they have strong intermolecular forces.

4. CH4 + O2 CO2 + H2O Is the balanced symbol equation for complete combustion.

PolymerisationLesson objectives

Recall what a hydrocarbon is (GCSE Grade C)Describe saturated and unsaturated compounds (GCSE

Grade A)Describe the test for an alkene (GCSE Grade C) and explain

how it works (GCSE Grade A)Draw displayed formula of compounds (GCSE Grade C)

Draw displayed formula of an addition polymer from the monomer and monomer from the polymer (GCSE Grade A)Explain how addition polymerisation occurs (GCSE Grade

A)

On your Post-it note answer the questions…..

1. What is a hydrocarbon? (GCSE Grade D)2. What is the difference between a saturated (alkane)

and an unsaturated (alkene) compound? (GCSE Grade C)

3. Explain the test for an alkene (unsaturated compound)? (GCSE Grade A)

4. Draw the displayed formula for ethene (C2H4) (GCSE grade C)

5. Draw a displayed formula to show an addition polymer of the monomer ethene (GCSE Grade A)

If you got…

5/5- Exam questions on polymers and produce either a mind-map to help you remember key points or revision cards

4/5- Make revision cards relevant to the question you got wrong and then do exam questions.

3/5 or less- Group work

What do all these have in common? (GCSE Grade D)

CH4

C5H12

C4H8

C2H6 C3H6

C100H202

What do all these have in common?(GCSE Grade C)

CH4

C5H12

C4H8

C2H6 C3H6

C100H202

Alkenes and alkanes (GCSE Grade A)

1. Draw an alkane (ethane, C2H6)2. Draw an alkene (ethene, C2H4)3. What is the difference between the two?4. Label which is unsaturated and which is

saturated5. How many pair of shared electrons are their

between the single and the double bond?

Modeling polymerisation (GCSE Grade C)

1. Using each other2. Molymod kits

Displayed formula

Exam tipWhen you are constructing the

displayed formula for an addition polymer from a monomer, first draw

the monomer without the double bond to see what the repeat unit looks like.

nReminder:

Extension: There are two forms of polyethene. One is used in plastic bags and the other is used in drainpipes and milk crates. How might it be possible to have two different sets of properties for one polymer?

Draw the polymer that was produced from this alkene called

Propene

1

Did you get it?

Draw the polymer Teflon from the polymerisation of

2

Did you get it?

KEYWORDS: Monomers, Polymers.

Draw the polymer that was produced from this alkene

3

Did you get it?

Draw the polymer that was produced from vinyl chloride

4

Did you get it?

What chemical test can we do to test for an unsaturated or saturated compound?

plus a double bond COLOURLESS UNSATURATED

Bromine Water

plus a single bond REMAINS ORANGE SATURATED

Grab your Post-it note and answer the questions…..

1. What is a hydrocarbon? (GCSE Grade D)2. What is the difference between a saturated (alkane)

and an unsaturated (alkene) compound? (GCSE Grade C)

3. Explain the test for an alkene (unsaturated compound)? (GCSE Grade A)

4. Draw the displayed formula for ethene (C2H4) (GCSE grade C)

5. Draw an addition polymer of the monomer ethene (GCSE Grade A)

HOMEWORK