Rates of Reaction
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- Sun Jul 20 2008
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... Rates of Reaction coursework Aim: My aim is to see how the concentration of hydrochloric acid affects the rate of reaction, using marble chips. Prediction: Primarily I state my hypothesis to be; that the increase in concentration (hydrochloric acid) of reactants will increase the collision frequency between the reactants, this and calcium carbonate. Therefore the effective collision frequency also increases. A chemical reaction is where the molecules of reactants either combine or separate, in this case we are looking at the displacement of the between calcium carbonate and hydrochloric acid, below is the formula for this reaction: 2HCl (aq) + CaCO3 (s) ----> CaCl2 (aq) + H2O (l) + CO2 (g) Hydrochloric acid + Calcium carbonate --> Calcium chloride + water + carbon dioxide Reactants: 2HCl (aq): hydrochloric acid (aqueous) CaCO3 (s): calcium carbonate (solid) Products: CaCl2 (aq): calcium chloride (aqueous) H2 O (l): water (liquid) CO2 (g): carbon dioxide (gas) I will now state the principals of














