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5 Written questions

5 Matching questions

  1. -2
  2. nucleus
  3. sublimation
  4. -1
  5. product
  1. a a substance that is changed in a chemical reaction
  2. b what charge does an oxygen ion have?
  3. c what charge does a fluorine ion have?
  4. d the change of a substance from a solid to a gas
  5. e the central part of an atom

5 Multiple choice questions

  1. what color would pH paper turn in lemon juice?
  2. a representation where the chemical symbol represents the nucleus and a series of dots represents the valence electrons
  3. the process of melting, evaporation and sublimation require that the particles _____ energy
  4. a column on the periodic table
  5. which part of the chemical formula will tell you that the compound is an acid?

5 True/False questions

  1. periodichaving a regular, repeating pattern


  2. chemical bondingthe change of a substance from a solid to a liquid


  3. 9which pH would be associated with a weak base (1, 5, 9, 14)?


  4. Alkaline Earth Metalsfamily that has two valence electrons


  5. let the water evaporatehow would you seperate sugar from water?


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