August 2017 Chemistry Regents Questions 11-20 Question Preview (ID: 59761)


Use Your Knowledge Of Chemistry To Answer All Questions In The Data Set. You Will Need Your Chemistry Reference Tables And A Calculator To Answer Some Of The Questions. Good Luck. TEACHERS: click here for quick copy question ID numbers.

According to Table F, which substance is most soluble in water?
a) AgCl
b) CaCO3
c) Na2CO3
d) SrSO4

Which statement describes the energy change in this reaction?
a) A bond is broken as energy is absorbed.
b) A bond is broken as energy is released.
c) A bond is formed as energy is absorbed.
d) A bond is formed as energy is released.

Which sample of matter is a mixture?
a) air
b) ammonia
c) manganese
d) water

Paper chromatography can separate the components of a mixture of colored dyes because the components have differences in
a) decay mode
b) thermal conductivity
c) ionization energy
d) molecular polarity

At standard pressure, the boiling point of an unsaturated NaNO3(aq) solution increases when
a) the solution is diluted with water
b) some of the NaNO3(aq) solution is removed
c) the solution is stirred
d) more NaNO3(s) is dissolved in the solution

Which term identifies a form of energy?
a) combustion
b) exothermic
c) thermal
d) electrolytic

According to kinetic molecular theory, which statement describes one characteristic of an ideal gas system?
a) The distance between gas molecules is smaller than the diameter of one gas molecule.
b) The attractive force between two gas molecules is strong.
c) The energy of the system decreases as gas molecules collide.
d) The straight-line motion of the gas molecules is constant and random.

The temperature of a substance is a measure of the
a) average kinetic energy of its particles
b) average potential energy of its particles
c) ionization energy of its particles
d) activation energy of its particles

A real gas behaves most like an ideal gas at
a) low pressure and high temperature
b) low pressure and low temperature
c) high pressure and high temperature
d) high pressure and low temperature

A reaction is most likely to occur when the colliding particles have proper orientation and
a) mass
b) volume
c) half-life
d) energy

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