A reaction occurs more slowly when a single piece of zinc is used than when the same mass of powdered zinc is used. Why does this occur?

In order for a reaction to be spontaneous, the sign of delta G must be

If a catalyst is added to a system at equilibrium, and the temperature and pressure remain constant, there will be no effect on the

Assume that the potential energy of the products in a chemical reaction to be 60 kJ. This reaction would be exothermic if the potential energy of the reactants were

Which series of physical changes represents an entropy increase during each change?

Which statement is true for a saturated solution?

PbCl2(s) <--> Pb2+(aq) + 2Cl-(aq). When KCl(s) is added to the system, the equilibrium shifts to the

The expression deltaH - TdeltaS is equal to the change in

What two criteria must be fulfilled in order for a reaction to occur

AgCl(s) <--> Aq+(aq) + Cl-(aq). As NaCl(s) is dissolved in the solution, the concentration of the Ag+ ions in the solution

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