CHM 114 Final Review – Flashcards

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