A second-order reaction starts with an initial concentration of 0.020 M of the reactant. If the rate constant is 1.0x10-3 M-1s-1, what is the time required for the concentration of the reactant to reach 0.010 M?

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

In the reaction h2co3 (aq) + 3nh3 (aq) = 2 nh4+ (aq) + co3 2-, how many electrons are transferred?

Use the half-reactions of the reaction au(oh)3 + hi -> au +i2 +h2o to answer the questions