What property of the following reaction might be qualitatively measured to follow the rate of reaction?
A) C(s) + H20(g) > H2(g) + CO(g)
B) Cu(s) + 2Ag+(aq) > Cu2+(aq) + 2Ag(s)
A) C(s) + H20(g) > H2(g) + CO(g)
B) Cu(s) + 2Ag+(aq) > Cu2+(aq) + 2Ag(s)