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Creative Problem Solving in Chemistry - Find the chloride

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Devise experiments to determine which of five solids is the chloride by using chemicals and apparatus in the laboratory.

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Find the chloride
Handout | PDF, Size 35.44 kb
Using the problems
PDF, Size 30.49 kb

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Level

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Category

Specification

Northern Ireland
- GCSE
  - CCEA Chemistry
    - Unit 1: Structures, Trends, Chemical Reactions, Quantitative Chemistry and Analysis
      - 1.9 Chemical analysis
        1.9.16 write ionic equations for the halide and sulfate ion tests and tests for metal ions using sodium hydroxide solution;
Wales
- A/AS level
  - WJEC Chemistry
    - Unit 1: THE LANGUAGE OF CHEMISTRY, STRUCTURE OF MATTER AND SIMPLE REACTIONS
      - 1.6 The Periodic Table
        (f) reactions of the aqueous cations Mg²⁺, Ca²⁺ and Ba²⁺ with OH⁻, CO₃²⁻ and SO₄²⁻ ions
        (g) characteristic flame colours shown by compounds of Li, Na, K, Ca, Sr and Ba (Mg compounds show no colour)
        (j) trends in solubility of Group 2 hydroxides and sulfates
        (o) reaction between aqueous Ag⁺ and halide ions followed by dilute aqueous NH₃
    - Unit 3: PHYSICAL AND INORGANIC CHEMISTRY
      - 3.3 Chemistry of the p-block
        (l) differences in behaviour of NaCl, NaBr and NaI with concentrated sulfuric acid (formation and subsequent reactions of HX)
England
- GCSE
- A/AS level

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