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AP Chem (Zumdahl 7th ed.) Ch. 4 Flashcards

Ch. 4 Types of Chemical Reactions And Solution Stoichiometry

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190586623aqueous solutiona solution in which water is the dissolving medium or solvent
190586624polar moleculea molecule that has a permanent dipole moment
190586625hydrationthe interaction between solute particles and water molecules
190586626solubilitythe amount of a substance that dissolves in a given volume of solvent at a given temperature
190586627solutea substance dissolved in liquid to form a solution
190586628solventthe dissolving medium in a solution
190586629electrical conductivitythe ability to conduct an electric current
190586630strong electrolytea material, when dissolved in water, gives a solution that conducts an electric current very efficiently
190586631weak electrolytea material which, when dissolved in water, gives a solution that conducts only a small electric current
190586632nonelectrolytea substance that, when dissolved in water, gives a nonconducting solution
190586633acida substance that marks the end point of an acid-base titration by changing color
190586634strong acidan acid that completely dissociates to produce an H+ ion and the conjugate base
190586635strong basea metal hydroxide salt that completely dissociates into its ions in water
190586636weak acidan acid that dissociates only slightly in aqueous solution
190586637weak basea base that reacts with water to produce hydroxide ions to only a slight extent in aqueous solution
190586638molaritymoles of solute per volume of solution in liters
190586639standard solutiona solution whose concentration is accurately known
190586640dilutionthe process of adding solvent to lower the concentration of solute in a solution
190586641precipitation reactiona reaction in which an insoluble substance forms and separates from the solution
190586642precipitatethe solid formed in the precipitation reaction
190586643formula equationan equation representing a reaction in solution showing the reactants and products in undissociated form, whether they are strong or weak electrolytes
190586644complete ionic equationan equation that shows all substances that are strong electrolytes as ions
190586645spectator ionsions present in solution that do not participate directly in a reaction
190586646net ionic equationan equation for a reaction in solution, where strong electrolytes are written as ions, showing only those components that are directly involved in the chemical change
190586647basea substance that produces hydroxide ions in aqueous solution, a proton acceptor
190586648neutralization reactionan acid--base reaction
190586649volumetric analysisa process involving titration of one solution with another
190586650titrationa technique in which one solution is used to analyze another
190586651stoichiometric (equivalence) pointthe point in a titration when enough titrant has been added to react exactly with the substance in solution being titrated
190586652indicatora chemical that changes color and is used to mark the end point of a titration
190586653endpointthe point in a titration at which the indicator changes color
190586654oxidation-reduction (redox) reactiona reaction in which one or more electrons are transferred
190586655oxidation statea concept that provides a way to keep track of electrons in oxidation--reduction reactions according to certain rules
190586656oxidationan increase in oxidation state (a loss of electrons)
190586657reductiona decrease in oxidation state ( a gain of electrons)
190586658oxidizing agent (electron acceptor)a reactant that accepts electrons from another reactant
190586659reducing agent (electron donor)a reactant that donates electrons to another substance to reduce the oxidation state of one of its atoms
190586660half-reactionsthe two parts of an oxidation--reduction reaction, one representing oxidation, the other reduction

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