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5 Written questions

5 Matching questions

  1. ionic bonds
  2. chemical reaction
  3. Kinetic energy
  4. phases of matter
  5. hydrogen bonds
  1. a The formation or rearrangement of chemical bonds, usually indicated in an equation by an arrow from the reactants to the products
  2. b The attractive forces between ions of opposite charge
  3. c Physical conditions of matter (solid, liquid, and gas) determined by the relative amounts of energy of the molecules
  4. d Weak attractive forces between molecules; important in determining how groups of molecules are arranged
  5. e energy of motion

5 Multiple choice questions

  1. states that all matter is made up of tiny particles that are in constant motion
  2. The total internal kinetic energy of molecules
  3. A ways of describing what happens in a chemical reaction
  4. a homogeneous mixture of ions or molecules of two or more substances
  5. Materials that will be changed in a chemical reaction

5 True/False questions

  1. isotopeThe component that dissolves in a solvent


  2. compoundThe particle in the nucleus of an atom that has a positive electrical charge


  3. solidThe component that dissolves in a solvent


  4. energy levelA region surrounding an atomic nucleus that contains electrons moving at approximately the same speed and having approximately the same amount of kinetic energy


  5. chemical bondsThe attractive forces between ions of opposite charge


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