1) A gas changes into a liquid at the gas`s what

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Name _______________________________ Date __________________
SOL PS.2
1. The temperature at which a gas
changes into a liquid is called
what?
5. A solution that can dissolve more
solute at a given temperature is
called:
A
B
C
D
A
B
C
D
the melting point
the condensation point
the boiling point
the freezing point
2. The particle theory of matter
suggests:
A molecules of solids, liquids, and
gases all move.
B molecules of solids do not move.
C only molecules of gases move.
D only molecules of liquids have
random motion.
3. When a liquid becomes cold
enough:
A
B
C
D
its molecules speed up.
it turns into a gas.
its molecules break apart.
it turns into a solid.
4. On the pH scale, a neutral
solution is indicated by what
number?
A
0
B
4
C
7
D 11
supersaturated.
unsaturated.
heterogeneous.
saturated.
6. What is the correct ordering of
these small parts of matter, from
the smallest to the largest?
A
B
C
D
proton < atom < nucleus
atom < nucleus < proton
nucleus < atom < proton
proton < nucleus < atom
7. What usually causes matter to
change state between solids,
liquids, and gases?
A a change in the strength of the
surrounding magnetic field
B a change in its temperature and/or
pressure
C a change in the size of its molecules
D a change in its electric charge
8. What is the point at which a liquid
changes into a gas?
A
B
C
D
melting point
condensation point
boiling point
freezing point
_______________________________________________________________________________________________________
Copyright©1999,2000 S.S. Flanagan & D.E. Mott
7
Do not reproduce without permission. 07-15-00
Name _______________________________ Date __________________
SOL PS.2
9. Which set of states of matter and
characteristic motion is most
accurate?
A solid - molecules twist and slide
liquid - molecules vibrate
gas - molecules are evenly spaced
B solid - molecules are rigid
liquid - molecules float freely
gas - molecules are evenly spaced
C solid - molecules vibrate
liquid - molecules twist and slide
gas - molecules float freely
D solid - molecules are rigid
liquid - molecules are evenly spaced
gas - molecules twist and slide
12. Most nonmetals:
A
B
C
D
are hard, shiny solids.
are crystals.
are radioactive.
are not electrical conductors.
13. Which of the following elements
is chemically stable?
A
B
C
D
hydrogen
chlorine
potassium
gold
10. Combustion is a chemical
reaction in which a substance
combines with what other
substance?
A
B
C
D
carbon
oxygen
nitrogen
hydrogen
11. Which of the following sets of
pairings is correct?
A element - helium
compound - carbon dioxide
mixture - dirt
B element - salt
compound - sulfur
mixture - rust
C element - methane
compound - blood
mixture - soup
D element - bronze
compound - air
mixture - oxygen
_______________________________________________________________________________________________________
Copyright©1999,2000 S.S. Flanagan & D.E. Mott
8
Do not reproduce without permission. 07-15-00
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