A reaction has the rate law, rate = k[A][B]3.  What is the overall order of the reaction?

The equilibrium law for the system, CaO(s)  + CO2(g) CaCO3(s), is

In a chemical reaction system that has reached equilibrium, the concentrations of the various spe­cies are constantly changing even though the total number of molecules is unchanging.  ___ 

A reaction has the rate law, rate = k[A][B]2.  Which change will cause the great­est in­crease in the reaction rate?

Most heterogeneous reactions are slower than similar homogeneous reactions.  Which of the following best explains why?

For a chemical reaction, the rate constant at 250.0 °C is 0.00383 s‑1, and the activation energy is        22.40 kJ mol‑1.  Calculate the value of the rate constant at 335.0 °C.

What is the ecological name for the transitional zone between two well defined communities?

What of the following statements is TRUE about mutualistic relationships

The reaction of substance A with substance C was carefully studied under conditions where the [C] remained essentially constant.  The graphs of [A] vs. time and that of ln[A] vs. time both gave curves, but the graph of 1/[A] vs. time gave a straight line. The reaction is therefore _______ order with respect to A.

What mechanism explains the long term coexistence of two species that compete for the same resources?