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Chemistry
OCR GCSE Chemistry A
Chemical reactions
OCR GCSE Chemistry A · J248 · Topic C3
Chemical reactions
Paper 1 (Foundation)
or
Paper 3 (Higher)
· 40 notes
Interpret chemical equations as symbolic representations of chemical changes.
Understand the principle of conservation of mass in reactions.
Model reactions as the rearrangement of atoms.
Apply the concept of the mole and the Avogadro constant to measure substance amounts.
C3.1
Introducing chemical reactions
CM3.1i
Quantitative Arithmetic
CM3.1ii
Standard Form with Avogadro
CM3.1iii
Significant Figures
CM3.1iv
Unit Conversions
C3.1a
Chemical Formulae
C3.1b
Writing Balanced Equations
C3.1c
Periodic Table Formulae
C3.1d
Deducing Compound Formulae
C3.1e
Ionic Equations
C3.1f
State Symbols
C3.1g
The Avogadro Constant and the Mole
C3.1h
Mass and Moles Relationship
C3.1i
Law of Conservation of Mass
C3.1j
Mass Changes in Reactions
C3.1k
Stoichiometry and Limiting Reactants
C3.1l
Calculating Masses from Equations
C3.2
Energetics
CM3.2i
Interpreting Reaction Charts
CM3.2ii
Energy Calculations
C3.2a
Exothermic and Endothermic Reactions
C3.2b
Reaction Profiles
C3.2c
Activation Energy
C3.2d
Bond Energy Calculations
C3.3
Types of chemical reactions
CM3.3i
Quantitative Calculations
C3.3a
Redox: Oxygen Transfer
C3.3b
Redox: Electron Transfer
C3.3c
Acids and Alkalis Ions
C3.3d
Neutralisation Reactions
C3.3e
Ionic Neutralisation
C3.3f
Reactions with Acids
C3.3g
Acid Strength and Concentration
C3.3h
pH Scale
C3.3i
Hydrogen Ions and pH
C3.3j
Logarithmic pH Scale
C3.3k
Measuring pH
C3.4
Electrolysis
CM3.4i
Quantitative Electrolysis
C3.4a
Electrode Products
C3.4b
Molten Electrolysis Products
C3.4c
Aqueous Electrolysis Products
C3.4d
Electrode Reactions
C3.4e
Electrolysis Techniques
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