RATES OF REACTION SKILL P  There are four factors that affect the rate of a chemical reaction. These are Temperature, Surface area, concentration and the use of catalysts.  I am going to investigate the factors that affect the rate of reaction between marble chips and dilute Hydrochloric acid. The chemical reaction for this is : - CaCO3 S + 2HCL aq CaCL2 aq + H2O l + CO2  The factors that affect this reaction are: - Temperature: - In a cold reaction mixture the particles are moving quite SLOWLY ?óÔé¼ÔÇ£...
tight, when the reactant reacts with the hydrochloric acid it produces the gas Carbon Dioxide, once produced it pushes the syringe forward and we can measure the rate of reaction.

 We started the reaction by placing the marble chip in with the hydrochloric acid and covering the test tube with a bung. We realised that the reaction was over by recognising identical reading in three times.

 To get the best results from the investigation we must repeat it several times so that we can average the results to ensure good results.