Topic 3 Acids Chemistry Unit C1 Chemistry in our world Edexcel gcse science c1t3edex

Doc Brown's Edexcel GCSE Science-Chemistry Revision Notes

EDEXCEL GCSE Science Unit C1 Chemistry in our world STUDY NOTES

Chemistry Unit C1 Topic 3 Acids Revision Notes

3.1 Know that hydrochloric acid is produced in the stomach to:
- a) help digestion
- b) kill bacteria
3.2 Be able to describe indigestion remedies as containing substances that neutralise excess stomach acid.
3.3 Revise the investigation (hopefully you did) into the effectiveness of different indigestion remedies.
- This involves titrating the alkaline crushed tablets in water with a standard solution of alkali.
3.4 Know that acids are neutralised by:
- a) metal oxides
- b) metal hydroxides
- c) metal carbonates to produce salts
- (note that no details of salt preparation techniques or ions are required here)
3.5 Know that:
- a) hydrochloric acid produces chloride salts
- b) nitric acid produces nitrate salts
- c) sulfuric acid produces sulfate salts (old names sulphuric acid and sulphates)
3.6 Be able to describe electrolysis as a process in which electrical energy, from a d.c. supply, decomposes compounds.
- You should be familiar with the electrolysis of dilute hydrochloric acid to produce hydrogen and chlorine.
- (Note that explanations of the reactions at the electrodes are not required)
3.7 You should know how to investigate the electrolysis of dilute hydrochloric acid and the products formed.
3.8 Be able to describe the chemical test for hydrogen.
3.9 Be able to describe the chemical test for chlorine.
3.10 Know that chlorine can be obtained from sea water by electrolysis.
- (Note that explanations of the reactions at the electrodes are not required)
3.11 Know that chlorine as a toxic gas and that this leads to potential hazards associated with its large-scale manufacture.
3.12 Be able to describe the use of chlorine in the manufacture of bleach and of the polymer poly(chloroethene) (PVC).
3.13 Know that water can be decomposed by electrolysis to form hydrogen and oxygen (by electrolysis of dilute sulfuric acid solution).
3.14 Be able to describe the chemical test for oxygen.
Revision Notes and Quizzes to help you revise
- Edexcel GCSE Science Chemistry
- When revising, these pages provide you with a summary of what you need to know and be able to do.
- BUT remember, your primary source of revision are your class notes, investigations and Edexcel GCSE science textbooks.

EDEXCEL GCSE Science CHEMISTRY 1 UNIT 1 C1 Chemistry in our world INDEX

ALL Edexcel GCSE Science Units: Edexcel GCSE Science Biology Unit B1 Influences on life

Edexcel GCSE Science Biology Unit B2 The components of life * Edexcel GCSE Science Unit B3 Using biology

Edexcel GCSE Science Unit C1 Chemistry in our world * Edexcel GCSE Science Unit C2 Discovering Chemistry

Edexcel GCSE Science Unit C3 Chemistry in action * Edexcel GCSE Science Unit P1 Universal Physics

Edexcel GCSE Science Unit P2 Physics for your future * Edexcel GCSE Science Unit P3 Applications of Physics

GCSE Science-Chemistry courses AQA GCSE Science A CHEMISTRY * EDEXCEL GCSE Science CHEMISTRY

OCR GCSE 21st Century Science A CHEMISTRY * OCR GCSE Gateway Science B CHEMISTRY

WJEC GCSE Science-CHEMISTRY * Northern Ireland CCEA GCSE Science-CHEMISTRY

** Doc Brown's Edexcel GCSE Chemistry Revision







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