Chapters1-3
Chapters4-5 Chapters 7-8
Chapter 9
Chapter 10
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This is the study of the
composition of matter and the
changes that matter undergoes.
What is chemistry?
These are the five traditional
areas of study of chemistry.
What are organic chemistry,
inorganic chemistry,
biochemistry, analytical
chemistry, and physical
chemistry?
The four possible clues of a
chemical change include a
change in color, production of
gas, formation of a precipitate
and this.
What is a transfer of energy?
0.044 km equals this many
meters.
What is 44 meters?
-Dimensional Analysis is a way
to analyze and solve problems
using the units, or dimensions, of
the measurements. This is how
conversions such as this are
made.
The difference between these two
classifications are whether or not
the composition of a material is
fixed or varied.
What are substances and mixtures?
- If the composition of a material is
fixed, the material is a substance. If
the composition of a material may
vary, the material is a mixture.
These are the three types of
subatomic particles found in an
atom.
What are protons, neutrons, and
electrons?
Elements are different because
they have different numbers of
this subatomic particle.
What are protons?
The aufbau principle, the Pauli
exclusion principle, and Hund’s
rule help to find this within
atoms.
What are electron
configurations?
-Aufbau Principle: electrons occupy the
orbitals of lowest energy first
-Pauli Exclusion Principle: an atomic
orbital may describe at most two electrons
-Hund’s Rule: electrons occupy orbitals of
the same energy in a way that makes the
number of electrons with the same spin
direction as large as possible
Some actual electron
configurations differ from those
assigned using the aufbau
principle because of half-filled
levels are not as ______ as filled
levels but more so than other
configurations.
What is stable?
These are the steps required to
calculate the atomic mass of an
element.
What are 1. multiply the mass of
each isotope by its natural
percent abundance (expressed
in decimal) and then 2. add the
products.
-An Atomic Mass Unit (amu) is defined
as one twelfth of the mass of a carbon-12
atom.
The group number of
representative elements are also
the number of this in an atom.
What are valence electrons?
Examples of these include the
metals found in groups 1A and
2A because metallic elements
tend to lose their valence
electrons.
What are cations?
This theory states that the
repulsion between electron pairs
causes molecular shapes to adjust
so that the valence-electron pairs
stay as far apart as possible.
What is the Valence-Shell
Electron-Pair Repulsion
(VSEPR) Theory?
Sterling Silver is made up of
92.5% Silver and 7.5% Copper.
This is an example of this type of
mixture.
What is an alloy?
-Alloys are mixtures composed of
two or more elements, at least one of
which is a metal. Alloys are
important because their properties are
often superior to those of their
common elements.
This is the structure for this
molecule.
What is ethene?
The name of a binary ionic
compound is the cation name
followed by this.
What is the anion name?
Cl2O8 indicates this many atoms
found within the compound.
What are 10 atoms?
-2 chlorine atoms
-8 oxygen atoms
These are the two laws that
define the ways which
compounds form.
What are “the law of definite
proportions” and “the law of
multiple proportions”?
Acetic Acid is also written as
this.
What is CH3COOH?
Using Greek prefixes, Cl2O8 is
named this.
What is dichlorine octoxide?
Prefixes Used in Naming Binary Molecular Compounds
Mono- Di-
Tri-
Tetra-
Penta- Hexa-
Hepta- Octa-
Nona-
Deca-
1
3
4
5
7
9
10
2
6
8
These are the three methods for
measuring the amount of a
substance.
What are by count, by mass,
and by volume?
Representative particles
1 mole
X______________
6.02 x 1023representative particles
Above is the equation to
find this.
What are moles?
This of an element or compound
is the conversion factor for
converting between the mass and
the number of moles of a
substance.
What is the molar mass?
The two compounds of Ethyne
(C2H2) and Styrene (C8H8) have
the same smallest whole number
ratio of atoms, thus they have this
in common.
What is the same empirical
formula?
Representative particles
1 mole
X________
=Moles
6.02 x 1023 representative particles
The denominator of this
equation is known as
this.
What is Avogadro’s Number?