[ErinNicole8]

1.   Assuming the general trend for reactivity of metals  across a row, predict whether or not the following will take place:
a.   V + CoCl2         
b.   Al + MgCl2   
(How would I even go about figuring this out?)

2.   For the following reactions, determine the most and least reactive metals.

a.   Ag + PbCl2                        NO REACTION             I got Pb as most & Ag as least

b.   Ca+AgCl              CaCl2 + Ag            I got Ca as most & Ag as least

c.   K +CrCl3      KCl +Cr                  I got K as most and Cr as least

d.   Au + PbCl2        NO REACTION

e.   Cr + PbCl2          CrCl3 + Pb

f.   Ag + AuCl3          AgCl + Au

g.   Ca +KCl         NO REACTION          I got K as most and CA as least

h.   Cr + CaCl2         NO REACTION          I got Ca as most and Cr as least


(Am I on the right track?)

[sjb]

If Ca and K₊ do not react, and Ca²⁺ and Cr do not react (equations g and h), what can you say about K⁺ and Cr?