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Unit 5:14

Redox equilibria AQA A2 chemistry

QuestionAnswer
Where does the positive electrode sit? right
Whats at the positive electrode? the more positive subsance
Where does the negative electrode sit? left
Whats at the negative electrode? the more negative substance
If a substance is more negative it is more likely to be? Oxidised or be a reducing agent
If a substance is more positive it is more likely to be? reduced or be a oxidising agent
How do you work out potential difference? right-left
What does oil rig stand for? Oxidation is loss, reduction is gain
What happens to the oxidation state if something is oxidised? goes up
What happens to the oxidation state if something is reduced? goes down
What are the standard conditions for measuring standard potential difference? 1 moldm-3, 100kpa, 289k
Whats standard electrode potential measured against? H2 gas
What is the platinum wire used for in fluid electrodes? A surface for the reaction to take place on
What must cancel out when making a balanced ionic equation? electrons
Created by: claudiafarley