Master AP Chemistry Topic 5.9 with this free practice quiz. Test your skills on the steady-state approximation, solving for intermediates, and checking mechanisms against experimental rate laws to prepare for your AP exam. An Intermediate in a Steady State An intermediate is formed in one step of a mechanism and consumed in a later step … Read more
Master AP Chemistry Topic 5.8 with this free practice quiz. Test your skills on rate determining step, mechanism validity, and predicting rate laws to prepare for your AP exam. The Rate-Determining Step The steps of a mechanism (Topic 5.7) do not all run at the same speed. The slowest step is the bottleneck: nothing later … Read more
Master AP Chemistry Topic 5.7 with this free practice quiz. Test your skills on multi step reactions, reaction intermediates, and overall reaction equations to prepare for your AP exam. A Mechanism Is a Sequence of Elementary Steps The overall equation of a reaction shows only the net change: which species are consumed and which are … Read more
Master AP Chemistry Topic 5.6 with this free practice quiz. Test your skills on energy profiles, transition state, and enthalpy of reaction to prepare for your AP exam. The Reaction Coordinate Diagram A reaction energy profile plots potential energy on the vertical axis, in kJ/mol, against reaction progress on the horizontal axis, the reaction coordinate. … Read more
Master AP Chemistry Topic 5.5 with this free practice quiz. Test your skills on effective collisions, activation energy, correct orientation, and temperature effects to prepare for your AP exam. Reactions Happen in Collisions The collision model explains rates at the particle level. Reactant particles move constantly, and a reaction can only happen when the particles … Read more
Master AP Chemistry Topic 5.4 with this free practice quiz. Test your skills on unimolecular, bimolecular, termolecular reactions, and direct rate laws to prepare for your AP exam. A Single Molecular Event An elementary reaction is a reaction that takes place in one single step, exactly as its equation is written. One molecular event occurs: … Read more
Master AP Chemistry Topic 5.3 with this free practice quiz. Test your skills on integrated rate laws, linear graphs, and first order half life to prepare for your AP exam. From a Rate at an Instant to a Concentration at a Time A rate law such as rate = k[A]² gives the rate at one … Read more
Master AP Chemistry Topic 5.2 with this free practice quiz. Test your skills on method of initial rates, reaction orders, rate constant, and units of k to prepare for your AP exam. The Rate Law: Rate Written in Terms of Concentration A rate law links the rate of a reaction to the reactant concentrations at … Read more
Master AP Chemistry Topic 5.1 with this free practice quiz. Test your skills on rate of appearance, rate of disappearance, relative rates, and stoichiometry and rates to prepare for your AP exam. What the Rate Measures A reaction rate measures how fast a concentration changes. It is the change in concentration of a reactant or … Read more
Master AP Chemistry Topic 4.9 with this free practice quiz. Test your skills on oxidation numbers, oxidizing agents, reducing agents, and half reactions to prepare for your AP exam. Redox Means Electrons Change Hands Oxidation is the loss of electrons. Reduction is the gain of electrons. The memory hook is OIL RIG: Oxidation Is Loss, … Read more