Which of the following possesses the lowest concentration of [H+]?

The reaction 2NO(g) + O2(g) → 2NO2(g) has the following rate law: Rate = k[O2][NO]2. If the concentration of NO is doubled, the rate will __________

H2CO3 is a _________ acid;                                             (weak or strong) H2CO3 is a __________ acid than HCO3-,               (weaker or stronger) and HCO3- is a __________ base than CO32-.       (weaker or stronger)

The entropy of the universe is ________.  

Which substance is the reducing agent in the following reaction? Ca(s) + Zn2+(aq) → Ca 2+(aq) + Zn(s)

For the following, in which case would the buffer capacity not be exhausted either by the addition of 0.5 moles of HCl or by the addition of 0.5 moles of NaOH?    

When a voltaic cell reaches equilibrium, __________

What effect will adding additional C (g) to the following equilibrium system have, once equilibrium is reestablished? 2 A (g)

 The purpose of the salt bridge in an electrochemical cell is to ________.

19). Colony collapse disorder may have no one single cause but may result from many interacting factors affecting bees, including poor nutrition, pathogens, and pesticides.