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Chemistry Final Review Part 3 Flashcards | StudBud
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Chemistry Final Review Part 3
Chemistry Final Review Part 3
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Chemistry Final Review Part 3
Flashcards
35 cards
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Questions
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Answers
1
Pressure is the force per unit
length.
surface area.
depth.
volume.
2
Particles escape from the surface of a non-boiling liquid and enter the gas state during
sublimation
surface tension
aeration
evaporation
3
In metallic bonds, the mobile electrons surrounding the positive ions are called a(n)
electron sea.
Lewis structure.
dipole.
electron cloud.
4
The process by which molecules of gas randomly encounter and pass through a small opening
vaporization
effusion
diffusion
distillation
5
An ideal gas is a hypothetical gas
whose particles have zero mass.
not made of particles.
that conforms to all the assumptions of the kinetic theory.
made of motionless particles.
6
The strong forces of attraction between the positive and negative regions of molecules are
dipole-dipole forces.
lattice forces.
London forces.
orbital forces.
7
What is the study of mass relationships among reactants and products in a chemical reaction?
periodic law
electron configuration
composition stoichiometry
reaction stoichiometry
8
What is the small whole number that appears in front of a formula in a chemical equation?
a superscript
a subscript
a coefficient
a ratio
9
The ability of an element to react is the element's
valence.
activity.
electronegativity.
stability.
10
Particles within a solid
exchange positions easily.
vibrate about fixed positions.
do not move.
move about freely.
11
Which reactant controls the amount of product formed in a chemical reaction?
mole ratio
limiting reactant
composition reactant
excess reactant
12
VSEPR theory is a model for predicting
lattice energy values.
the strength of metallic bonds.
the shape of molecules.
ionization energy.
13
The electrons involved in the formation of a chemical bond are called
Lewis electrons.
s electrons.
dipoles.
valence electrons.
14
What is the maximum possible amount of product obtained in a chemical reaction?
percentage yield
actual yield
mole ratio
theoretical yield
15
The equation AX + BY → AY + BX is the general equation for a
decomposition reaction.
single-displacement reaction
double-displacement reaction.
synthesis reaction.
16
What is the SI unit of force?
pound
pascal
newton
torr
17
Forces holding particles together are strongest in a
vapor.
gas.
liquid.
solid.
18
The equation A + BX → AX + B is the general equation for a
combustion reaction.
decomposition reaction.
single-displacement reaction.
double-displacement reaction.
19
In what kind of reaction does one element replace a similar element in a compound
decomposition reaction
displacement reaction
combustion
ionic reaction
20
The atoms that share electrons have an unequal attraction for the electrons, the bond is called
polar.
nonpolar.
dipolar.
ionic.
21
Which instrument measures atmospheric pressure?
barometer
torrometer
vacuum pump
manometer
22
A solid forms when the average energy of a substance's particles
decreases.
decreases then increases.
creates a random arrangement.
increases.
23
The equation A + X → AX is the general equation for a(n)
double-displacement reaction.
combustion reaction.
synthesis reaction.
ionic reaction.
24
What is the study of the mass relationships of elements in compounds?
Avogadro's principle
percentage yield
composition stoichiometry
reaction stoichiometry
25
A chemist interested in the efficiency of a chemical reaction would calculate the
mole ratio.
percentage yield.
rate of reaction.
energy released.
26
In what kind of reaction does a single compound produce two or more simpler substances?
ionic reaction
synthesis reaction
decomposition reaction
single-displacement reaction
27
A formula that shows only the types and numbers of atoms combined in a single molecule is a
molecular formula.
ionic formula.
Lewis structure.
covalent formula.
28
The coefficients in a chemical equation represent the
number of atoms in each compound in a reaction.
relative numbers of moles of reactants and products.
number of valence electrons involved in the reaction.
masses, in grams, of all reactants and products.
29
When a solid produced by a chemical reaction separates from the solution it is called
a precipitate.
the mass of the product.
a molecule.
a reactant.
30
A formula that shows the simplest whole-number ratio of the atoms in a compound is the
ideal formula.
molecular formula.
experimental formula.
empirical formula.
31
The decomposition of a substance by an electric current is called
conduction.
ionization.
transformation.
electrolysis.
32
The equation AX → A + X is the general equation for a
combustion reaction.
single-displacement reaction.
synthesis reaction.
decomposition reaction.
33
In what kind of reaction do two or more substances combine to form a new compound?
ionic reaction
synthesis reaction
decomposition reaction
double-displacement reaction
34
The kinetic-molecular theory explains the behavior of
liquids and gases only.
gases only.
solids, liquids, and gases.
solids and liquids only.
35
A balanced chemical equation allows one to determine the
energy released in the reaction.
mole ratio of any two substances in the reaction.
electron configuration of all elements in the reaction.
mechanism involved in the reaction.
