What are the differences between the effects of a catalyst vs reactant concentration on the position of equilibrium/ why?
An increased concentration of reactant will shift equilibrium to the right, because the reactants will react to form more product in order to decrease concentration again. However, while a catalyst will increase the rate at which equilibrium is reached, it has no effect on the position of equilibrium - it does not alter the final concentrations of reactant or product, only the time at which these are reached.
PS
Related Chemistry GCSE answers
All answers ▸Why is a diamond harder than graphite if they're made of the same substance?
Metals can be extracted fromt their oxides via the process of electrolysis. Positive metal ions are attracted to the negative electrode. explains what happens at the negative electrode. (2 marks)
What does a reaction between acid and base give?
Explain some trends when going down Group 7 of Halogens in the Periodic Table