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Calcium Carbonate + Hydrochloric Acid -> Calcium Chloride + Water + Carbon Dioxide CaCO3 + 2HCl -> CaCl 2 + H2O + CO2 Aim Investigate factors affecting rate of reaction between calcium carbonate and hydrochloric acid. Method & Diagram Fill measuring cylinder with water Half fill water basin with water Invert measuring cylinder whilst covering open end with hand Submerge measuring cylinder (End with hand on) Put 25ml of acid into the conicle flask Have 2.0g of marble chips ready Put end of pipe into submerged conicle flask Prepare to start stopwatch Put marble chips in with acid & put bung on conicle flask whilst starting stopwatch Every 30s starting from 0s take a measurement of how much air there is in measuring cylinder (cm3) When you have done this with the first concentration of acid clean out the conicle flask and refill the measuring cylinder & repeat experiment with next concentration of acid. Equipment *...

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