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Summary AQA AS-level/A-level REDOX revision notes

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Notes on REDOX for AQA AS/A-level Chemistry | instant download | Struggling to memorise REDOX? These beautifully handwritten A-Level AQA Chemistry notes make the trickiest topics easier to understand and revise. Ideal for visual learners, these notes are neat, structured, and directly aligned with the AQA specification. Summarised information meaning concise knowledge. - Handwritten for clarity and visual learning - Covers the full ‘REDOX’ topic concisely - Perfect for quick revision or in-depth study - Digital PDF download – print or view on any device and instant access - uses exam question answers to learn key knowledge for subtopics Whether you're reviewing for mocks or prepping for your A-Level exams, these notes save you time and help lock in with easy-to-read visuals, definitions, and exam-style answer notes. Knowledge for many of the subtopics are in the form of answers to key exam questions so ticks important points when used to answer questions. No refunds as this is an electronic product but can contact if there are any issues with the product. Product should not be re-distributed or re-sold. Apologies for any tiny spelling mistakes as these have been handwritten on a device Trusted by students aiming for top grades– a must-have study tool for any serious A-Level student. Designed by an A-Level student (who got into Imperial for Medicine), for A-Level students – perfect for Year 12 & 13 revision! Good luck!

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OxidationReduction and redox equations
oxidation oxidisingagents are reduced so gain e
e are transferred


f
Eduction when reduction and
reducing agents are oxidised so lose e oxidation occurs
Esain
of e
oxidation numbers or state
rules
Elements ox state in compounds example
1 Elements 70 L2 Fe Oz
2 Ions same as ionic charge l e 1 alt 2
3 Group I I 7KCL
IGYMIhiim.FI 3 ebQnnyarides
6 Hydrogen where it is 1 Htt
7 Chlorine
7154 Pt if in a compound with Fand0 would b ite Kelleris t
in
8 FYI M 2metals
except 1 inperoxidesand 2inOF lizoco is 1 in 4202
s
10 Transition varies Fez033 Fe0 2
Oxidation or reduction
oxidation is an increase in oxidation number and reduction is a decrease
writing half equations
Rules
1 write speciesbefore and after a reaction ninja
Mnet
2 Balance any atoms apart from oxygenandHydrogenMnog Mnet
3 Balance anyoxygens with H2O Mnog Mn2 4420
4 Balance any hydrogens with Htions Mno 4 8Ht Mn2 442
5 Balance charges with e Mn 09 8HttSe MnetAH
combining half equations
forms an ionic equation showsbothreduction andoxidation a redoxreaction
rules
1 ensure bothequationscontain same numberofelectrons
2 cancel electrons and combine the 2equations
ionic equation should have no electrons

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