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Which of the properties B
listed below is a
characteristic of a liquid
but not of a gas?
A. It has the ability to
flow.
B. It maintains its
volume inan open container.
C. Its molecules
areconstantly in motion. D.
Its volume varies depending
on temperature.
D
A 0.100 m3 chamber is filled
with oxygen gas at standard
conditions (101 kPa at 273
k). Assuming ideal
conditions and behavior,
what will be the pressure of
the gas in the chamber after
it is heated to 819 k? A. 34
kPa
B. 51 kPa
C. 202 kPa
D. 303 kPa
,In 1898, J.J. Thomson C
provided the first hard
evidence for the existence of
subatomic particles in the
atom by using a cathode ray
tube to discover the A.
proton.
B. neutron.
C. electron.
D. nucleus.
If all of the atoms in a B
substance have the same
atomic number, the
substance is a(an) A.
compound.
B. element.
C. mixture.
D. alloy.
The balanced chemical B
equation for the formation of
iron (III) oxide is
A. Fe + O2 -> FeO2.
B. 4Fe + 3O2 -> 2Fe2O3.
C. 3Fe + O2 -> Fe3O2.
D. Fe + O -> FeO.
,Small molecules that contain C
H bonded to O have higher
boiling points than similar
molecules in which H is
bonded to S. Why does this
change occur?
A. The H to O bond
isnonpolar.
B. The H to S bond is
morepolar than the H to O
bond.
C. The H to O bond
ismore polar than the H to S
bond.
D. The H to S bond
isnonpolar.
A + B -> AB What type of A
reaction is given above?
A. combination
B. decomposition
C. double displacement
D. single displacement
According to Hooke's Law, B
the relationship between the
elastic force and the distance
of stretch for an elastic
material is
A. inversely proportional.
B. directly proportional.
C. exponential.
D. power squared.
, A ball rolls off a horizontal table B
and hits the floor at a faster
vertical speed than when it
leaves the table. This is an
example of which law of objects
in motion?
A. Newton's 1st law
B. Newton's 2nd law
C. Kepler's 1st law
D. Kepler's 2nd law
The pitch of a car's horn D
changes as the car
approaches. This is an
example of
A. constructiveinterference.
B. destructiveinterference.
C. diffraction.
D. the Doppler effect.
Two identical objects with A
identical electrostatic charges
will
A. repel one another.
B. attract one another.
C. have no effect on
eachother.
D. emit a spark.