AQA Chemistry [C2] Part 1

Mind Map by ryancharman98, updated more than 1 year ago
Created by ryancharman98 over 5 years ago


GCSE Chemistry Mind Map on AQA Chemistry [C2] Part 1, created by ryancharman98 on 10/22/2014.

Resource summary

AQA Chemistry [C2] Part 1
1 Bonding
1.1 Ionic
1.1.1 Metals and non-metals Metals Lose electrons Positive ions Non-metals Gain electrons Negative ions
1.1.2 Compounds held by strong forces
1.1.3 Giant stucture or lattice Strong electrostatic forces Each ion surrounded by ions of the negative charge Held firmly in place
1.2 Covalent
1.2.1 Non-metals Two atoms share electrons
1.2.2 Group 7 Gain one electron Form single bond
1.3 Metallic
1.3.1 Electrons in highest energy shell delocalise Move freely between each other A lattice of + ions in a sea of moving electrons Delocalised electrons attract
2 How much?
2.1 Reversible reactions
2.1.1 Products react to make original reactants
2.2 Analysing substances
2.2.1 Identify food additives Paper chromatography Detect artificial colours Solvent is allowed to move through the paper Compounds separated using gas chromatography Identified using a mass spectrometer Find relative molecular mass From its molecular ion peak
3 Structure and Properties
3.1 Giant ionic structures
3.1.1 Strong electrostatic forces Solid at room temperature High melting and boiling point
3.1.2 Conduct Molten Ions free to move Water Water molecules split lattice
3.2 Simple molecules
3.2.1 Low melting and boiling point Intermolecular forces are weak
3.2.2 Do not conduct No overall charge
3.3 Giant covalent structures
3.3.1 Very high melting points
3.3.2 Diamond Form of carbon Carbon atom bonded with four other carbon atoms Makes diamond hard Transparent
3.3.3 Graphite Carbon atom bonded with three other carbon atoms No covalent bonds Slide over each other Weak intermolecular bonds Graphite = slippery and grey One electron is delocalised Allow graphite to conduct heat and electricity
3.4 Giant metallic structures
3.4.1 Alloys Mixtures of metals Different sized atoms Distort the layers More difficult to slide Harder than pure metals Shape memory alloys Bent/ deformed into different shape
3.4.2 Conduct heat and electricity Delocalised electrons
3.5 Polymers
3.5.1 Depends on the monomers
3.5.2 Thermosetting polymers Do not soften or melt
3.5.3 Thermosoftening polymers Forces are weak When heated, polymer becomes soft Weak intermolecular forces are broken
3.6 Nanoscience
3.6.1 Study of small particles Very large surface area
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