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5 Written questions

5 Matching questions

  1. heat
  2. solvent
  3. products
  4. atomic weight
  5. acids
  1. a The weight of an atomic nucleus, expressed in atomic mass units (the sum of the protons and neutrons)
  2. b The component present in the larger amount
  3. c Compounds that release a hydrogen ion in a solution
  4. d New molecules resulting from a chemical reaction
  5. e The total internal kinetic energy of molecules

5 Multiple choice questions

  1. The phase of matter in which the molecules are more energetic than the molecules of a liquid, resulting in only a slight attraction for each other
  2. The weight of an atomic nucleus expressed in atomic mass units (the sum of the protons and neutrons)
  3. An atom of the same element that differs only in the number of neutrons
  4. A scale used to indicate the concentration of an acid or a base
  5. The phase of matter in which the molecules are strongly attracted to each other, but, because they have more energy, and are farther apart than in a solid, they move past each other more freely

5 True/False questions

  1. protonThe particle in the nucleus of an atom that has a positive electrical charge

          

  2. laws of conservation of energyenergy of motion

          

  3. atomic nucleusThe number of protons in an atom

          

  4. soluteIonic compounds formed from a reaction between an acid and a base

          

  5. potential energyThe energy an object has because of its position