Chemistry 2.1 Equilibrium and acid-base reactions

• A reversible reaction is one which takes place in both forward and backward directions
• As fast as the reactants are converted into products, the products products are converted back into reactants
• Dynamic Equilibrium = Where the forward and backward reactions occur at the same rate
• Le Chatelier's principle = If a system at equilibrium is subjected to a change, the equilibrium tends to shift so as to minimise the effect of the change
• An equilibrium only applies as long as the system remains isolated
• POE = Position Of Equilibrium 
• POE can be altered by changing:

1. Concentration of the reactants or products
2. Pressure…