AP Notes, Outlines, Study Guides, Vocabulary, Practice Exams and more!

AP Chemistry Chapter 4 Flashcards

Terms : Hide Images
7267444967aqueous solutiona solution in which the water is the dissolving medium0
7267444968solutionhomogeneous mixture of two or more substances1
7267444969solventsubstance present in the greatest quantity and the one the dissolves the other substances2
7267444970solutethe substances in a solution that are being dissolved (of the least quantity)3
7267444971dissociationthe separation into component ions that occurs when an ionic compound dissolves4
7267444972electrolytea substance whose aqueous solutions contain ions, commonly with ionic compounds5
7267444973nonelectrolytea substance that does not form ions in solution, commonly molecular compounds6
7267444974solvationprocess that helps stabilize the ions in solution and prevents the cations and anions from recombining; this process is symbolized by aq in reactions and causes ions to become dispersely uniform throughout a solution7
7267444975strong electrolytessolutes that exist in solution completely or nearly completely as separate ions; fully or almost fully dissociate; in chemical equations, represented by a full arrow8
7267444976weak electrolytessolutes that exist in solution mostly in the form of molecules with only a small fraction in the form of ions; do not completely dissociate; in a chemical equation, represented by two half arrows9
7267444977chemical equilibriumbalance that produces a state in which the relative numbers of each type of ion or molecule in the reaction are constant over time10
7267444978precipitation reactionreaction that results in the formation of an insoluble product11
7267444979precipitatean insoluble solid formed by a reaction in solution12
7267444980solubilityamount of substance that can be dissolved in a given quantity of solvent at the given temperature (at a given temperature)13
7267444981insolubleA substance is described as ______ if they have a solubility less than 0.01 mol/L14
7267444982metathesis reactionAx + By -> Ay + Bx; these reactions include both single and double replacement reactions15
7267444983molecular equationan equation that shows the complete chemical formulas of the reactants and products without indicating ionic behavior16
7267444984complete ionic equationan equation written with all strong soluble electrolytes shown as ions17
7267444985spectator ionsions that appear in identical forms among both the reactants and products of a complete ionic equation18
7267444986net ionic equationan equation for a reaction in solution showing only those particles that are directly involved in the chemical change19
7267444987acidsubstance that ionizes in aqueous solutions to form hydrogen ions, thereby increasing the concentration of H+(aq) ions; often called proton donors20
7267444988monoprotic acidsacids that yield one H+ per molecule of acid ex) HCl, HNO321
7267444989diprotic acidsacids that yield two H+ per molecule of acid ex) H2SO422
7267444990basesubstance that accepts (reacts with) H+ ions and produce hydroxide ions (OH-) when they dissolve in water; there are common ____s that do not contain hydroxide, however, like NH423
7267444991strong acidsacids that are strong electrolytes (completes ionized in solution)24
7267444992strong basesbases that are strong electrolytes (completely ionized in solution)25
7267444993strong acidsHCl, HBr, HI, HClO3, HClO4, HNO3, H2SO426
7267444994strong basesAll Group 1A metal hydroxides (LiOH, NaOH, KOH, RbOH, CsOH) and heavy Group 2A metal hydroxides (Ca(OH)2, Sr(OH)2, Ba(OH)2)27
7267444995weak acidsacids that are weak electrolytes (partly ionize in solution)28
7267444996weak basesbases that are weak electrolytes (partly ionize in solution)29
7267444997neutralization reactionthe reaction that occurs when a solution of an acid and a solution of a base are mixed30
7267444998saltany ionic compound whose cation comes from a base and whose anion comes from an acid; ____ and water are the products of neutralization reactions31
7267444999oxidation-reduction (redox) reactionreaction in which electrons are transferred between reactants32
7267445000oxidationloss of electrons by a substance33
7267445001reductiongain of electrons by a substance, and therefore increase in negative charge34
7267445002oxidation numbereither the actual charge of a monatomic ion or the hypothetical charge assigned to an atom in a neutral molecule or charged species35
72674450030oxidation number of elemental ions36
7267445004charge of the ionoxidation number for monatomic ions37
7267445005displacement reactionreactions in which the ion in solution is displaced/replaced through oxidation of an element38
7267445006activity serieslist of metals arranged in order of decreasing ease of oxidation; active metals are top and noble metals bottom; any metal on the list can be oxidized by the ions of elements below it39
7267445007concentrationterm used by scientists to designate the amount of solute dissolved in a given quantity of solvent or solution40
7267445008molaritythe concentration of a solution expressed as the number of moles in a liter of solution (mol/L)41
7267445009dilutionprocess in which solutions of lower concentrations can be obtained by adding water42

Need Help?

We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.

For general help, questions, and suggestions, try our dedicated support forums.

If you need to contact the Course-Notes.Org web experience team, please use our contact form.

Need Notes?

While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!