Conceptual Chemistry Final Exam Review (Part 2): Question Preview (ID: 15177)

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How does decreasing the volume of a gas at constant temperature cause an increase in pressure?
a) The particles expand and hit the walls of the container with more force.
b) The particles move faster and hit the walls of the container with more force.
c) The number of particles inside of the container increases.
d) The particles move at the same speed but hit the walls of the container more frequently.

Which law describes the proportional relationship between the pressure and volume of a gas?
a) Gay-Lussac’s Law
b) Boyle’s Law
c) Natural Law
d) Charles’s Law

Which is not an example of a phase change?
a) expansion
b) sublimation
c) condensation
d) evaporation

In the Kelvin temperature scale, 0.00 indicates
a) absolute zero
b) the freezing point of water
c) the freezing point of alcohol
d) the freezing point of sea water

The first step in all stoichiometry problems is to ____.
a) add the coefficients of the reagents
b) start with what you are given
c) convert given quantities to volumes
d) convert given quantities to masses

In the reaction 2CO(g) + O (g) --> 2CO2 (g), what is the ratio of moles of oxygen used to moles of CO2 produced?
a) 1:1
b) 2:1
c) 1:2
d) 2:2

How many moles of aluminum are needed to react completely with 1.2 mol of FeO? 2Al(s) + 3FeO(s) --> 3Fe(s) + Al O (s)
a) 1.2 mol
b) 0.8 mol
c) 1.6 mol
d) 2.4 mol

At STP, how many liters of oxygen are required to react completely with 3.6 liters of hydrogen to form water? 2H2 (g) + O2 (g) --> 2H2O(g)
a) 1.8 L
b) 3.6 L
c) 2.0 L
d) 2.4 L

Calculate the number of moles of Al2O3 that are produced when 0.6 mol of Fe is produced in the following reaction. 2Al(s) + 3FeO(s) --> 3Fe(s) + Al2O3 (s)
a) 0.2 mol
b) 0.4 mol
c) 0.6 mol
d) 0.9 mol

When an equation is used to calculate the amount of product that will form during a reaction, then the value obtained is called the ____.
a) actual yield
b) percent yield
c) theoretical yield
d) minimum yield

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