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5 Written questions

5 Matching questions

  1. Solution
  2. Reactants
  3. Fourth shell of an atom can contain how many electrons?
  4. Solvent
  5. Adhesion
  1. a The dissolving agent of a solution. Water is the most versatile solvent known.
  2. b The attraction between different kinds of molecules.
  3. c 18
  4. d A starting material in a chemical reaction.
  5. e A liquid that is a homogeneous mixture of two or more substances.

5 Multiple choice questions

  1. A compound resulting from the formation of ionic bonds; also called an ionic compound.
  2. The making and breaking of chemical bonds, leading to changes in the composition of matter.
  3. A strong chemical bond in which two atoms share one or more pairs of outer-shell electrons.
  4. Rain, snow or fog that is more acidic than pH 5.2.
  5. A subatomic particle having no electrical charge, found in the nucleus of an atom.

5 True/False questions

  1. MatterAnything that occupies space and has mass.

          

  2. CohesionThe sticking together of molecules of the same kind, often by hydrogen bonds.

          

  3. Atomic MassThe number of protons in each atom of a particular element.

          

  4. ProductA substance that is dissolved in a solution.

          

  5. MoleculeA substance that is dissolved in a solution.

          

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