English National Curriculum - Science Science
Mission Objectives
Describe how to use chemical tests to identify the ions in unknown compounds
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Words and meanings to learn
charge
The amount of energy something has.
compound
Two or more different elements which are held together by ionic or covalent bonds.
precipitate
To convert a chemical substance into a solid using a solution by turning the substance into a super-saturated mixture or an insoluble structure.
solution
Mixture which is liquid and is equally spread out within the main component.
ions
A molecule or atom which will gain or lose one or more electrons leading to a net electric charge.
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Resources: Bunsen burner, test tubes and test tube rack, teat pipette, nichrome wire mounted in handle or cork, limewater, 0.4 mol/dm3 dilute hydrochloric acid, 0.1 mol/dm3 barium chloride solution, 0.4 mol/dm3 dilute nitric acid, 0.05 mol/dm3 silver nitrate solution, chlorides of lithium, sodium, potassium, calcium and copper, sodium salts containing carbonate, sulfate, chloride, bromide and iodide, salt solution labelled ‘unknown’.
Expert film
Mission assignment film
Nuclear Decomissioning Operative
Nuclear Decomissioning Team Leader
Nuclear Decomissioning Site Engineer
Technical or Production Director
Analytical Technician
Laboratory Quality Control Technician