Salma Ahmed
English Lit. GCSE Student
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Find the effects upon the rate of reaction between hydrochloric acid and calcium carbonate, when different concentrations are used; and to find scientific evidence to support my hypothesis.
- Words:
- 2011
- Submitted:
- Fri Feb 06 2004
Have a little read: ... Chemistry GCSE Science Coursework Investigation Aim The Experiment Fair Test Pilot Run Variables Constants Prediction and Hypothesis Safety Equipment List Choice of Equipment Method Results Graph Conclusion Evaluation Aim: The aim of this investigation is to find the effects upon the rate of reaction between hydrochloric acid and calcium carbonate, when different concentrations are used; and to find scientific evidence to support my hypothesis. The Experiment: The experiment that will be done to investigate whether concentration will affect the rate of reaction will be executed using marble chips - scientifically known as calcium carbonate and hydrochloric acid. This is the equation for this reaction: Calcium carbonate + hydrochloric acid --> Calcium chloride + water + carbon dioxide. Or CaCO3 + 2HCl = CaCl2 + H2O + CO2 The equasion here shows that when the hydrochloric acid is added to the calcium carbonate, carbon dioxide is produced and the calcium carbonate then turns to calcium chloride. The mass of the calcium carbonate will be decreased as carbon dioxide is produced and then escapes. The progress of
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