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The reaction is run at two temperatures where temperature 1 is lower than temperature 2.  Which relationship is correct for either rate constant (k1 or k2) or activation energy (Ea,1 and Ea,2)?

Arrange the Ka values for the three acids shown below from highest to lowest.  

Which statement is true for an electrochemical cell built from an oxidation-reduction reaction if K for the reaction is greater than 1?

The pH of a 0.050 M aqueous solution of ammonium chloride (NH4Cl) falls within what range?

Between HClO3 and HIO3, which is stronger and why?

A particular reaction is proposed to be zero order.  What plot would support this conclusion?

Which condition(s) will increase the concentration of dissolved oxygen (O2) in water? I. decrease the temperature of the solution. II. increase the total external pressure on the solution by adding more N2 gas

Which substance would have the greatest standard molar entropy?

Which particle, if lost from the nucleus, will not result in a change in the atomic mass number?

What is one set of conjugate acid/base pairs in this reaction?                                            HCOOH(aq) + H2O(l) ⇌ HCOO–(aq) + H3O+(aq)