Chemistry 5070/22 — May/June 2020
Cambridge O-Level · Theory · worked solutions for every part, with the mark scheme
Topics Stoichiometry · Experimental Techniques and Chemical Analysis · Acids, Bases and Salts · Atoms, Elements and Compounds · Organic Chemistry · Chemical Reactions · +6 more
Choose from the following chlorides to answer the questions.
aluminium chloride
ammonium chloride
calcium chloride
hydrogen chloride
iron(III) chloride
silver chloride
sodium chloride
Each chloride may be used once, more than once or not at all.
Which chloride:
contains a cation with a 2+ charge
______
reacts with warm aqueous sodium hydroxide to form a gas which turns damp red litmus paper blue
______
is insoluble in water
______
has a molecule which has only 18 protons
______
is a coloured solid at room temperature and pressure?
______
The rest of this paper
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