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Acids and Bases - Edexcel IGCSE Chemistry
Complete lessons and workbook
Content
Describe the use of litmus, phenolphthalein and methyl orange
to distinguish between acidic & alkaline solutions
Understand how to use the pH scale, from 0–14, to classify
solutions as strongly acidic (0-3), weakly acidic (4-6), neutral (7),
weakly alkaline (8-10) and strongly alkaline (11-14)
Describe the use of Universal Indicator to measure the
approximate pH value of an aqueous solution
Know that acids in aqueous solution are a source of hydrogen
ions and alkalis in an aqueous solution are sources of hydroxide
ions
Know that metal oxides, metal hydroxides and ammonia can be
classified as bases and that alkalis are bases that are soluble in
water
Know that bases can neutralise acids
Understand acids and bases in terms of proton transfer and that
an acid is a proton donor and a base is a proton acceptor
Understand how to use acid-base character of oxides to classify
elements as metals or non-metals
Describe the combustion of elements in oxygen, including
magnesium, hydrogen and sulfur
Describe the reactions of hydrochloric, sulfuric and nitric acids
with:
metals (but not with nitric acid)
bases
metal carbonates
Describe an experiment to prepare a pure, dry sample of a
soluble salt starting from an insoluble reactant
Describe an experiment to prepare a pure, dry sample of a
soluble salt starting from an acid and an alkali
Describe an experiment to prepare a pure, dry sample of an
insoluble salt starting from two soluble reactants
Weimar and Nazi Germany Complete Revision Booklet -CIE IGCSE History
This 20000+ word count document contains all possible 4, 6, and 10 mark questions and answers for the Weimar and Nazi Germany depth study. Each question is followed by key points, and also relevant detailed statistics.