MU #1 The three phases of matter (solids, liquids, and gases) have different properties.

MU #2 The structure and arrangement of particles and their interactions determine the physical state of a substance at a given temperature and pressure. 

TEST YOUR UNDERSTANDING

6/02

Which 5.0-milliliter sample of NH₃ will take the shape of and completely fill a closed 100.0-milliliter container?

            (1) NH₃(s)        (2) NH₃(l)                (3) NH₃(g)           (4) NH₃(aq)

8/02

Which statement correctly describes a sample of gas confined in a sealed container?

    (1) It always has a definite volume, and it takes the shape of the container.

    (2) it takes the shape and the volume of any container in which it is confined.

    (3) It has a crystalline structure.

    (4) It consists of particles arranged in a regular geometric pattern.

6/03

In which material are the particles arranged in a regular geometric pattern? (1) CO₂ (g) (2) NaCl(aq)  (3) H₂O(l)  (4) C₁₂H₂₂O₁₁(s)

8/04

11 Which grouping of the three phases of bromine is listed in order from left to right for increasing distance between bromine molecules?

                (1) gas, liquid, solid (2) liquid, solid, gas (3) solid, gas, liquid (4) solid, liquid, gas

1/05

41 Given the particle diagram:

At 101.3 kPa and 298 K, which element could this diagram represent?    (1) Rn (2) Xe (3) Ag (4) Kr

8/06

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