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5 Written questions

5 Matching questions

  1. mixture
  2. displacement
  3. K shell
  4. soluble
  5. compound
  1. a substance made up of two or more elements chemically combined
  2. b can hold up to 2 electrons
  3. c able to dissolve
  4. d two or more substances that have been mixed together but not chemically combined
  5. e amount of water an object replaces

5 Multiple choice questions

  1. center, or core, of an atom
  2. number of protons in the nucleus of an atom
  3. substance that is dissolved in a solvent
  4. positively charged particle
  5. smallest part of a substance that has all the properties of the substance

5 True/False questions

  1. insolublenot able to dissolve


  2. substancenumber written to the lower right of a chemical symbol


  3. chemical formulaway of writing the name of a compound using chemical symbols


  4. neutronneutral particle


  5. mass numbernumber of protons and neutrons in the nucleus of an atom


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