can you fix grammar and make it more clearerr use third person
The online simulation mandatory practical 7 factors affecting the rate of reaction investigates changes in temperature of solution and concentration of reactants affect the rate of reaction. The original experiment consisted 10mL of 0.25M sodium thiosulfate (Na2S2O3) 35mL of distilled water then add 5mL of 2M hydrochloric acid (HCl) whilst simultaneously increasing amount of sodium thiosulfate while decreasing the amount of distilled water. This was then stirred at a constant speed and commence time until cross disappears was recorded to see the effect of concentration of reactants.