Edexcel Core Chemistry

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Author:
across2015
ID:
289183
Filename:
Edexcel Core Chemistry
Updated:
2014-11-14 15:27:26
Tags:
Acids
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Description:
Acids
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  1. Which acid does the stomach contain?
    Hydrochloric acid
  2. Which process uses electrical energy to decompose a compound?
    Electrolysis
  3. What products do you get if you react magnesium carbonate with hydrochloric acid?
    • Magnesium chloride¬†
    • carbon dioxide
    • water
  4. How do you test for chlorine?
    Damp blue litmus paper is bleached white
  5. Why do we have acid in the stomach?
    • To digest food
    • kill bacteria
  6. How do you test for hydrogen?
    A lit splint goes squeaky pop
  7. What is the hazard of chlorine and how can it be managed?
    It is toxic, so wear a mask and keep well ventilated
  8. When an acid reacts with a base, which chemical reaction takes place?
    Neutralisation
  9. Why do we take indigestion remedies?
    To neutralise the excess acid
  10. Which products are produced when you react sodium hydroxide with nitric acid?
    Sodium nitrate and water
  11. How do you test for oxygen?
    A glowing splint relights
  12. What is chlorine used to manufacture?
    Bleach or PVC
  13. What type of electrical supply does electrolysis use?
    d.c
  14. Which compound is found in indigestion remedies?
    Calcium carbonate
  15. Which compounds neutralise acids?
    • Metal oxides
    • Metal hydroxides
    • Metal carbonates
  16. Which salt is produced using sulfuric acid?
    A metal sulfate
  17. What are the formulas for chlorine, hydrogen and oxygen?
    Cl2

    H2

    O2

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