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ChemistryExamONE

Over chapters 9 & 4

QuestionAnswer
A bonding pair of electrons will define or occupy a region of space in an orbital.
In general, each nonbonding pair, single bond, a multiple bond produces a single electron domain around the central atom in molecules.
The arrangement of the electron domain about the central atom is called the Electron domain geometry.
Most electronegative element in periodic table is Fluorine
Valence bond theory and hybrid orbitals allowed us to use lewis to rationalize the geometry of molecules.
______ describes the electrons and molecules by using specific wave functions called molecular orbitals also called (MO,MOs) Molecular Orbital Theory
Whenever 2 atomical orbitals orbitals overlap . . . two molecular orbitals form.
The substance in the greatest quanity is called _______ Solvent
Substance that is dissolved in solvent is called _______ Solute
_______ is a substance that when dissolved in water results in a solution that can conduct. Electrolytes
_______ Does not conduct electricity when dissolved in water Non electrolytes
______ process in which an ion is surrounded by water molecules arranged in a specific manner. Hydration
Result in the formation of an insoluble product is called .... A precipitate reaction
An equation showing the complete chemical formulas of the reactants and products is called . . . . . a MOLECULAR EQUATION, because it shows chemical formulas of the reactants and products without indicating their ionic character.
An electron is transferred between reactants this is known as ____ Oxidation reaction.
_______ Occurs when the oxidation number increases and reduction occurs when the oxidation number decreases. Oxidation
In tritrations a solution of accurately known concentration is called a Standard solution
*In relation to tritrations* If added gradually to another solution of an unknown concentration until the reaction between the two solutions is completed this is known as the . . . Equivalence point
______ are electrically conducting if the solutions are electrolytes. Aq solutions
3 major categories of chemical reactions that take place in AQ solutions are ____,_______,________ Precipitation, Acid/base, Oxidation / reduction
The reaction of a acid and base is called . . . . a Neutralizator reaction
_______ expresses concentration as the number of moles of solute in 1 liter of solution. Molarity
Adding solvent to a solution or dilution _________s the concentration of the solution without changing the total number of moles solute. Decreases
In ________ the oxidation and reduction happen simultaneously. Oxidation/reduction (Redox)
In ______ a solution of known concentration is added to a solution of unknown Acid base titration
________ are similar to acid base titrations, the point at when oxidation is complete is equivalent point Redox Reactions
Created by: kelliekountis