2025 LATEST ACTUAL EXAM 500 QUESTIONS AND
CORRECT DETAILED ANSWERS
Terms in this set (406)
,Which of the properties listed below is a B
characteristic of a liquid but not of a gas?
A. It has the ability to flow.
B. It maintains its volume in an open
container.
C. Its molecules are constantly in motion.
D. Its volume varies depending on
temperature.
A 0.100 m3 chamber is filled with oxygen gas D
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 provided the C
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 equation for B
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 H bonded C
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 is nonpolar.
B. The H to S bond is more polar
than the H to O bond.
C. The H to O bond is more polar
than the H to S bond.
D. The H to S bond is nonpolar.
A + B -> AB What type of reaction is A
given above?
A. combination
B. decomposition
C. double displacement
D. single displacement
According to Hooke's Law, the B
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.