AQA 'IGCSE' Triple Science-Chemistry

Not everything unfortunately. This is everything I learned up to January of year 11; basically everything except analysis. It also does not have any year 9 stuff (basically just uses of metals and pretty simple plain memory stuff). This is still very good for most of the spec; almost all.

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Preview of AQA 'IGCSE' Triple Science-Chemistry

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CHEMISTRY
POLYMERS
Lots of small, reactive monomers
join together to make a polymer.
COLD: solid and stiff, stick
together.
HOT: able to move around,
malleable.…read more

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CHEMISTRY
POLYMERS
Thermo-softening Thermosetting
Intermolecular forces are Once plastic is moulded
easily overcome with strong covalent crosslinks
heat. are formed
Cannot be remoulded
Can be remoulded
They char and burn…read more

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CHEMISTRY
ISOTOPES
Same Atomic Number Different Atomic Mass
Atomic Number: number of protons/electrons
Atomic Mass: protons plus neutrons
If you change:
Neutrons: isotope changes
Protons: element changes
Electrons: charge changes
· Atoms lose or gain electrons to gain a full outer shell
· They want a Noble Gas configuration…read more

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CHEMISTRY
IONIC BONDING
Metals lose electrons (become positive)
Non-metals gain electrons (become negative)
Ions are charge carrying species
Ions arrange themselves to maximize attraction and minimise
repulsion
Giant Ionic Regular Lattice Structure
-
+
Li F F Li…read more

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CHEMISTRY
COVALENT BONDING
SHARED PAIR OF
H
ELECTRONS
H C H
H…read more

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