notes gcse chemistry 4th form physics 5th form p5 as p1 p2 c1 c6 c5 c3 pupil work renewable energy 2r c4 prep as chemistry bonding alcohols unit 28 mechanisms halogenoalkanes unit 29 microwaves light optics satellites waves equilibria 27 organic intermediates 22 23 intermolecular forces c2 pictures photography presentation lesson science history photographs communication dispersion vectors equations of motion ionic 14 covalent projectiles momentum refraction alkanes alkenes naming 5th form 5th form shapes
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