Chemistry Unit 1 AQA GCSE

Hi, Just notes i made for C1, More to come for unit 1 and unit 2 and unit 3 before exams next week, Stay Tuned. 

P.S. It may not work properly using word as i used tools not available in word, so download openoffice.

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  • Created by: Zman5821
  • Created on: 09-05-14 16:54
Preview of Chemistry Unit 1 AQA GCSE

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Zed Revision Guide
CHEMISTRY
UNIT 1 GCSE AQA

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WRITTEN BY: Zain Zaman
ILLUSTRATED BY: Zain Zaman…read more

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C1: The fundamentals of chemistry
Atomic Mass (Mass Number)
23
Na…read more

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Proton Number (Atomic Number)
11
Protons
Shell
ElectronsNeutron
Protons and Neutrons build up to make a nucleus.
Periodic Table
Group 1 = Alkali Metals (v.…read more

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Electronic Configuration example
2:1
2 is amount of electrons in first shell and 1 is amount of electrons in second
shell. It differs per element. This electronic configuration is for Lithium.
Ionic Bonding
Ionic Bonding is when atoms gain electrons or lose electrons. When this
happens they are called a ion.
If they lose electrons they become positive.
If they gain they become negative.…read more

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Building Statues
Limestone + clay (heat) cement
Limestone + clay + sand Mortar
Limestone + Clay + Sand + Aggregate (Small Stones) Concrete
Quarrying
Limestone found in rock
We get limestone out of the ground by quarrying
Negatives to quarrying
Noise
Dust
Pollution
Spoil Landscape
Land destroyed cant be used for anything else
Positives to quarrying
Gets valuable material
Creates employment opportunists…read more

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Thermal decomposition)
HEAT!!!
CaCO3(p) > CaO+CO2(p)
Lime CycleCalcium Carbonate
CaCO3 (p)
ADD CARBONDIOXIDE
Calcium Oxide CaO
+ Carbon dioxide
Lime Cycle
Calcium Hydroxide SolutionCa(OH)2(p) (aqueus)
ADD WATER
Solid Calcium HydroxideCa(OH)2(p)
This is an alkaline which can be used to neutralise acid soil/lake.
ADD MORE WATER
(ALKALINE)
Test for Carbon Dioxide
Put the gas in limewater (Calcium Hydroxide Solution) and if it goes cloudy
than CO2 (p) is present.…read more

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Decomposing Carbonates
Calcium Carbonate Calcium Oxide + Carbon dioxide
Copper Carbonate Copper Oxide + Carbon dioxide
Extracting Metals
Metal Ore
Metal is chemically combined with impurities (oxygen).…read more

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These methods of extractions may not always be economically valuable such
as it may cost £1000 to extract it but the metal may only be worth £800
therefore it is NOT economically valuable.
Methods to extract metals
Displacement reaction
Iron oxide + Carbon Iron + Carbon dioxide.
Using electrolysis to extract metals is expensive.
How to extract low grade ores!
Phytomining
To phytomine you have to grow a plant on a ore however electrolysis or
displacement is still required.…read more

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The plant absorbs metal from the ore therefore after a while you burn the
plant and the ashes will have the rest of the metal without impurities.
Bioleeching
Bacteria growing on the ore
Ore
It creates a solution which requires to go through electrolysis or displacement
to get the metal without impurities.
When iron is extracted it is not 100% pure so it is brittle and strong. If it was
pure it will be soft.
Brittle: Breaks easily
Iron and carbon create an "alloy".…read more

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ArunJuss

This is awesome :D

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