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Chemistry

GCSE · AQA

QuestionsFlashcards

Simple Model of the Atom
The Periodic Table
Properties of Transition Metals
- Typical Properties of Transition Metals
  7
- Transition Metals vs. Alkali Metals
  6

Ionic, Covalent & Metallic Bond
Bonding & Substance Properties
Structure & Bonding of Carbon
Bulk & Surface Properties
- Sizes of Particles & their Properties
  6
- Nanoparticles
  6

Formation of Earth's Atmosphere
CO2 & CH4 as Greenhouse Gases
Causes of Atmospheric Pollution
- Atmospheric Pollutants from Fuels
  6
- Properties & Effects of Atmospheric Pollutants
  6

Global Reserves & Potable Water
Life Cycle Analysis & Recycling
- Life Cycle Assessment
  7
- Reducing Use of Resources
  5
Using Materials
Haber Process & NPK Fertilisers

Condensation Polymerisation Flashcards

All 5 cards in this deck

What is condensation polymerisation?: Monomers with two functional groups join together, usually losing small molecules such as water.
Which two types of monomer react to produce a polyester?: A diol (two –OH groups) and a dicarboxylic acid (two –COOH groups).
Which small molecule is lost when a diol polymerises with a dicarboxylic acid?: Water, $\mathrm{H_2O}$ .
How many products are formed in addition polymerisation compared with condensation polymerisation?: Addition: one product (the polymer only). Condensation: two products (the polymer and a small molecule such as water).
True or false? The monomers used in condensation polymerisation must contain a C=C double bond.: False. They contain two functional groups, such as –OH or –COOH; C=C is needed for addition polymerisation.