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--Can you communicate(交流) in English?Sorry, I can’t. I know English.

A. well; a little
B. good; little
C. good; a little
D. well; little

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When the thief saw a policeman, he run away as ________ as possible.

A. quick
B. quickly
C. fastly
D. Faster

已知:反应(1) 4NH3(g)+3O2(g) = 2N2(g) + 6H2O(l) △rH1θ= -1523 kJ•mol-1反应(2) H2(g) + 1/2O2(g) = H2O(l) △rH2θ= -287 kJ•mol-1则反应(3) N2(g) + 3H2(g)=2NH3(g)的 △rH3θ = ____ kJ•mol-1

已知下列化学反应在25℃时的标准平衡常数:( )HCN(aq)≒H+(ag)+CN-(aq) K1θ=6.2×10-10NH3 (aq)+H2O(l)≒NH4+(aq)+OH- (aq) K2θ=1.8×10-5H2O(l) ≒H+ (aq)+OH-(aq) K3θ =1.0×10-14则反应NH3 (aq) + HCN(aq) ≒NH4+(aq) + CN−(aq) 的标准平衡常数为( )

A. K1K2K3
B. K1K2/K3
C. K1/K2.K3
D. K1/K2/K3

已知NH3(g)、NO(g)、H2O(l)的△f Gmθ分别为-16.64 KJ·mol-1、86.69 KJ·mol-1、-237.2 KJ·mol-1,则反应4 NH3(g) +5O2(g)→4NO(g)+6 H2O(l)的△rGmθ(KJ·mol-1)为( )

A. -133.9
B. -1009.9
C. -1286.6
D. 159.5