AP Chemistry - THOU SHALT NOT FORGET

Front

What is hybridization?

Back

Hybridization is the concept of mixing atomic orbitals to form new hybrid orbitals, which can be used to form chemical bonds. It helps explain the geometry of molecular structures.

Front

What is the hybridization for carbon in CO₂?

Back

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Front

Define the equilibrium constant (Kc).

Back

Kc is a numerical value that expresses the ratio of the concentrations of products to reactants at equilibrium for a reversible chemical reaction.

Front

What is the equilibrium constant expression for the reaction aA + bB ⇄ cC + dD?

Back

Front

What is a rate law?

Back

A rate law is an equation that relates the rate of a chemical reaction to the concentration of its reactants, often expressed in the form rate = k[A]^m[B]^n.

Front

What is the rate law for the reaction A + A → B + B if the slow step is the elementary step?

Back

rate = k[A]^2

Front

What does it mean if K < Q in a chemical reaction?

Back

If K < Q, the reaction will proceed in the reverse direction to reach equilibrium.

Front

What is the relationship between reaction rate and concentration?

Back

The reaction rate typically increases with an increase in the concentration of reactants, as there are more particles available to collide and react.

Front

What is the order of a reaction?

Back

The order of a reaction is the sum of the powers of the concentration terms in the rate law, indicating how the rate is affected by the concentration of reactants.

Front

What does a first-order reaction graph look like?

Back

A first-order reaction graph of concentration vs. time is a downward-sloping curve that can be linearized by plotting ln[A] vs. time.