1) Delta s is positve for the reaction_________________ a) 2H2(g) +O2(g) yields 2H2O(g) b) 2NO2 (g) yields N2O4(g) c) CO2(g) yields CO2(s) d) BaF2(s) yields Ba+2(aq) +2F^-(aq) e) 2Hg(l) +O2(g) yields 2HgO(s) 2) The Ksp for CaF2 is 3

Subject:ChemistryPrice:2.84 Bought6

Share With

1) Delta s is positve for the reaction_________________

a) 2H2(g) +O2(g) yields 2H2O(g)

b) 2NO2 (g) yields N2O4(g)

c) CO2(g) yields CO2(s)

d) BaF2(s) yields Ba+2(aq) +2F^-(aq)

e) 2Hg(l) +O2(g) yields 2HgO(s)

2) The Ksp for CaF2 is 3.9 x10^-11 at 25 degrees celsius what is the molar solubility of [Ca^+2]?

3) What is the cathode in the hydrogen fuel cell?

a) O2

b) Li

c) Pt

d)KOH

e) H2