• Electron transfer, oxidation state change
• Oxygen gain/loss, hydrogen loss/gain
• Oxidizing/reducing agents
• Deduce oxidation states and identify oxidized/reduced species
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
2
Learning objective
3.2.2—Half-equations
New
• Separate oxidation and reduction
• Show electron loss/gain
• Deduce redox half-equations and equations in acidic or neutral solutions
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
3
Learning objective
3.2.3—Periodic trends in redox
New
• Metals: ease of oxidation
• Halogens: ease of reduction
• Metal displacement reactions
• Predict metal oxidation and halogen reduction using supplied data
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
4
Learning objective
3.2.4—Acids with reactive metals
New
• Release H₂ gas
• Deduce equations for reactive metals with dilute acids
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
5
Learning objective
3.2.5—Electrodes in electrochemical cells
New
• Oxidation at anode
• Reduction at cathode
• Signs/polarities in voltaic vs. electrolytic cells
• Identify anode/cathode from electrode reactions
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
6
Learning objective
3.2.6—Primary (voltaic) cells
New
• Spontaneous redox → electrical energy
• Electron flow: anode → cathode (external circuit)
• Ion movement across salt bridge
• Include metal/metal ion half-cells, circuit, and salt bridge
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
7
Learning objective
3.2.7—Secondary (rechargeable) cells
New
• Redox reactions reversible with electrical energy
• Deduce charging reactions from discharge reactions and compare cell types
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
8
Learning objective
3.2.8—Electrolytic cells
New
• Electrical energy → chemical energy
• Non-spontaneous reactions
• Electrolysis of molten salts
• Explain current conduction and deduce molten salt electrolysis products
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
9
Learning objective
3.2.9—Oxidation of organic functional groups
New
• Primary alcohols → aldehydes → carboxylic acids
• Secondary alcohols → ketones
• Include distillation/reflux setup and that tertiary alcohols are not oxidized similarly
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
10
Learning objective
3.2.10—Reduction of organic functional groups
New
• Carboxylic acids → aldehydes → primary alcohols
• Ketones → secondary alcohols
• Include hydride ion role; specific reducing agents and mechanisms are not assessed
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
11
Learning objective
3.2.11—Reduction of unsaturated compounds
New
• Addition of H₂ lowers unsaturation
• Alkenes + H₂, alkynes + H₂
• Deduce hydrogenation products of alkenes and alkynes
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
12
Learning objective
3.2.12 (HL)—Standard electrode potential (E⦵)
New
• Hydrogen half-cell = 0 V by convention
• Ease of oxidation/reduction
• Use standard conditions and electrode potential data to compare oxidizing/reducing ability
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
13
Learning objective
3.2.13 (HL)—Standard cell potential (E⦵cell)
New
• Calculate from E⦵ values
• Positive E⦵cell = spontaneous
• Predict feasible redox reactions from E⦵cell
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
14
Learning objective
3.2.14 (HL)—Gibbs energy and cell potential
New
• ΔG⦵ = −nFE⦵cell
• Link electron number, Faraday constant, and spontaneity
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
15
Learning objective
3.2.15 (HL)—Electrolysis of aqueous solutions
New
• Competing reactions at electrodes
• Water oxidation/reduction
• Deduce products from standard electrode potentials; include water and aqueous solutions
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
16
Learning objective
3.2.16 (HL)—Electroplating
New
• Electrolytic coating with metal layer
• Explain the metal object as cathode and the coating metal as ion source
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.