Rate of reaction

Rate of reaction

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Caption: Rate of reaction. Reaction of chalk with 0.1 M hydrochloric acid is used to demonstrate that the rate of reaction depends on surface area. Chalk is calcium carbonate, it reacts with hydrochloric acid to produce carbon dioxide bubbles: CaCO3 + HCl -> CaCl2 + H2O + CO2. This is an example of a double displacement reaction. In left panel, a piece of chalk is placed in hydrochloric acid. In right panel, chalk is ground and the reaction rate is visibly higher.

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Keywords: acid, bubbles, caco3, calcium carbonate, carbon dioxide, chalk, chemical, chemistry, co2, double displacement reaction, hcl, hydrochloric acid, rate of reaction, reaction, reaction rate, replacement reaction, solution, test tube

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