Writing Redox and Half-Reactions (Grade 12 NSC Matric Physical Sciences): Flashcards
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What redox reactions involve
What redox reactions involve
Transfer of electrons between atoms/compounds
OIL in OIL RIG mnemonic
OIL in OIL RIG mnemonic
Oxidation Is Loss (of electrons)
RIG in OIL RIG mnemonic
RIG in OIL RIG mnemonic
Reduction Is Gain (of electrons)
What happens during oxidation
What happens during oxidation
Element/compound loses electrons
What happens during reduction
What happens during reduction
Element/compound gains electrons
What an oxidising agent does
What an oxidising agent does
Gains electrons & causes other substance to be oxidised
What a reducing agent does
What a reducing agent does
Loses electrons & causes other substance to be reduced
What a half-reaction shows
What a half-reaction shows
Either oxidation or reduction process separately
Key principle for electrons in redox
Key principle for electrons in redox
Electrons lost must equal electrons gained
What must be balanced in redox equations
What must be balanced in redox equations
Both atoms and charges