Rates of Reaction

Question 1

5 ways the rate of reaction can be increased

Answer 1

increase in temperature
increasing concentration of reactant
increasing the surface area 
decreasing particle size 
use of catalyst

Question 2

What are catalysts

Answer 2

substances that speed up a chemical reaction but can be recovered chemically unchanged at the end of the reaction

Question 3

How can you show the rate of reaction decreasing due to decreasing concentration

Answer 3

by calculating the average rate at different stages of the reaction