Which combination will produce a precipitate?
A) Pb(NO3)2 (aq) and HCl (aq)
B) Cu(NO3)2 (aq) and KC2H3O2 (aq)
C) KOH (aq) and HNO3 (aq)
D) AgC2H3O2 (aq) and HC2H3O2 (aq)
E) NaOH (aq) and Sr(NO3)2 (aq)
Question 2
For a given reaction, H = +74.6 kJ/mol, and the reaction is spontaneous at temperatures above the crossover temperature, 449 K. The value of S = ________ J/mol K, assuming that H and S do not vary with temperature.
A) 166
B) 6020
C) -166
D) -6020
E) 3.35 104
Question 3
What fraction of the volume of each corner atom is actually within the volume of a face-centered cubic unit cell?
A) 1
B) 1/2
C) 1/4
D) 1/8
E) 1/16
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