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For Your Research

For Your Research. The Four Research Questions. What is the chemistry (including an equation) of the process? What are the factors that impact on the reaction rate of this process? Why would you want to control the reaction rate of the process?

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For Your Research

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  1. For Your Research

  2. The Four Research Questions • What is the chemistry (including an equation) of the process? • What are the factors that impact on the reaction rate of this process? • Why would you want to control the reaction rate of the process? • Which of these factors can be manipulated to achieve the desired result?

  3. How to Approach Question 1 • Example Topic: The Treatment of Indigestion (Heartburn). • What is the chemistry (including an equation) of the process?

  4. First Step • I Googled ‘indigestion antacid chemical reaction’. • And selected the BBC Bitesize website, at: http://www.bbc.co.uk/schools/ks3bitesize/science/chemical_material_behaviour/acids_bases_metals/revise5.shtml

  5. Search Results • I found that an excess of hydrochloric acid in your stomach causes indigestion. • Antacid tablets contain magnesium hydroxide or magnesium carbonate: pick one. • When carbonates react to neutralize acid, a salt plus water plus carbon dioxide is produced. • A general word equation is: acid + metal carbonate salt + water + carbon dioxide

  6. Next • Write a word equation: Hydrochloric acid + magnesium carbonate carbon dioxide + water + salt • Write the chemical equation: HCl + MgCO3 CO2 + H2O + MgCl • Balance it: 2HCl + MgCO3 CO2 + H2O + MgCl2

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