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5 Written questions

5 Matching questions

  1. parts per million
  2. liquid
  3. vapor pressure
  4. periodic table
  5. wavelength
  1. a A state of matter in which the particles move about freely while the substance retains a definite volume; thus, liquids flow and take the shape of their containers.
  2. b The distance between consecutive peaks and troughs in a wave.
  3. c The pressure exerted by a vapor in equilibrium with its liquid.
  4. d An arrangement of the elements according to their atomic numbers. The table consists of horizontal rows, or periods, and vertical columns, or families, of elements. Each period ends with a noble gas.
  5. e A measurement of the concentration of dilute solutions now commonly used by chemists in place of mass percent.

5 Multiple choice questions

  1. The grams of solute in 100 g of a solution.
  2. A gas that behaves exactly according to theory.
  3. A solution containing less solute per unit than its corresponding saturated solution.
  4. A solution with one mole of solute per mole of solution.
  5. The mass of a mole of atoms or molecules.

5 True/False questions

  1. saltsA state of matter that has no shape or definite volume.

          

  2. saturated solutionA solution containing more solute than needed for a saturated solution at a particular temperature.

          

  3. vapor-pressure curveThe characteristics of substances that give them unique identities.

          

  4. Thomson model of the atomThomson asserted that atoms are not indivisible but are composed of smaller parts; they contain both positively and negatively charged particles- protons as well as electrons.

          

  5. neutronA subatomic particle that is electrically neutral and is found in the nucleus of an atom.

          

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