CHM 114 Final Review

The symbol for the element magnesium is __________
Mg
Predict the empirical formula of the ionic compound that forms from magnesium and fluorine
MgF2
Each p-subshell can accommodate a maximum of ________ electrons
6
[Ar]4s^2,3d^10,4p^3 is the electron configuration of a(n) ____________ atom
As
The first ionization energies of the elements _________ as you go from left to right across the periodic table, and __________ as you go from the bottom to the top of a group in the table
Increase, Increase
Based on the octet rule, magnesium forms a ____________ ion
Mg^2+
For a given arrangement of ions, the lattice energy increases as ionic radius ____________ and as ionic charge ___________.
Deceases, Increases
According to VSEPR theory, if there are four electron domains in the valence shell of an atom, they will be arranged in a(n) ____________ geometry.
Tetrahedral
The molecular geometry of the SiH2Cl2 molecule is ________
tetrahedral
The process of doping silicon with phosphorus produces a __________ which can greatly ___________ the intrinsic conductivity.
n-type semiconductor, increase
An unsaturated solution is one that ______________.
has a concentration lower than the solubility
If the rate law for the reaction 2A+3B-> products in first order in A and second order in B, then the rate law is _________
k[A][B]^2
What is the correct indication of the relationship between the entropy of a system and the number of different microstates, W, in the system?
S=k*ln(W)
What is the oxidation number of potassium in KMnO4?
+1
In a voltaic cell, electrons flow from the _______ to the ___________.
anode, cathode
The kinetic-molecular theory predicts that pressure rises as the temperature of a gas increases because _______________
Both the gas molecules collide more frequently with the wall and the gas molecules collide more energetically with the wall
What is a correct statement of Boyle’s law involving P and V
PV=constant
________ and __________ reside in the atomic nucleus
Protons, neutrons
How many protons and neutrons does the isotope (40/18) Ar have?
18 protons and 22 neutrons.
___________ is an intensive property.
Density
Elements in Group 2A of the periodic Table are known as the _____________.
Alkaline Earth Metals.
Potassium is a ____________ and chlorine is ____________
Metal, nonmetal
___________ typically form ions with a 1+ charge (group on Periodic Table)
Alkali metals
1 nanometer = _______ centimeters
10^-7
The temperature of 15C is ________ in Kelvins.
288
A small amount of salt dissolved in water is an example of a __________ mixture.
Homogeneous
The charge on manganese in the salt MnF3 is __________.
3+
Predict the empirical formula of the ionic compound that forms from sodium and fluorine
NaF
The correct name for SrO is _______________
strontium oxide
Oxidation is the
Loss of electrons
A ____________ (delta)H corresponds to an ___________ process.
Negative, exothermic; Positive, endothermic
There are _______ orbitals in the third shell.
9
The n=1 shell contains ________ p orbitals. All the other shells contain _____ p orbitals
0,3
The 3p subshell in the ground state of the atomic xenon contains _____ electrons
6
[Ar]4s^2,3d^10,4p^3 is the electron configuration of a(n) _____ atom
As
The electron configuration of the S^2- ion is ___________.
[Ne]3s^2,3p^6
Electronegativity ____________ from left to right within a period and _____________ from top to bottom within a group in the periodic table.
Increases, decreases
The ion ICl4^- has ______ valence electrons.
36
In ionic bond formation, the lattice energy or ions ________ as the magnitude of the ion charges ________ and the radii ________
Increase,increase,decrease
According to VSEPR theory, if there are five electron domains in the valence shell of an atom, they will be arranged in a(n) __________ geometry.
Trigonal bipyramidal
The electron-domain geometry and molecular geometry of iodine trichloride are ________ and ______, respectively.
Trigonal bipyramidal, T-shaped
The ease with which the charge distribution in a molecule can be distorted by an external electrical field is called the __________.
Polarizability.
It is determined that a reaction rate increased by a factor of 9 when the concentration of B was tripled. The reaction is ___________ order in B.
Second
In general, as temperature goes up, reaction rate _____________
Goes up regardless of whether the reaction is exothermic or endothermic
At equilibrium,
the rates of the forward and reverse reactions are equal
How is the reaction quotient used to determine whether a system is at equilibrium?
The reaction is at equilibrium when Q=K(eq)
What is the oxidation number of potassium in KMnO4?
+1
The electrode at which oxidation occurs is called the ____________
anode
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