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Khan Academy
Khan Academy: Chemistry: Reaction in Equilibrium
In this video module explore how equilibrium in a chemical reaction is defined as when the rate going forward is equal to the rate of the reverse reaction. Also learn how to calculate the equilibrium constant by knowing the concentration...
Sophia Learning
Sophia: Define Equilibrium
This lesson will define equilibrium as the rate of the forward reaction equal to the rate of the reverse reaction, explaining that this does NOT mean that amounts of products and reactants are equal.