Of the compounds below, __________ has the smallest ionic separation.
A: K2S
B: RbCl
C: SrBr2
D: KF
E: RbF
A: K2S
B: RbCl
C: SrBr2
D: KF
E: RbF
举一反三
- Which of the compounds below have bonds that are predominantly ionic?() A: KCl B: CF4 C: NH3 D: both A and B E: both B and C
- The solubility of ionic compounds is associated with the lattice energy, the higher the lattice energy, the more soluble the ionic compound.
- Fe2S3的溶度积Ksp表达式是（） A: K= [Fe][S] B: K = [Fe][S] C: K = 2 [Fe]×3[S] D: K = [Fe]2[S] E: K = [1/2Fe]2[1/3S]
- 已知下列反应的平衡常数： H2(g)+S(s)=H2S(g) KӨ1 S(s)+O2(g)=SO2(g) KӨ2 则反应H2(g)+SO2(g)=O2(g)+H2S(g)的标准平衡常数。 A: KӨ1/ KӨ2 B: KӨ2/ KӨ1 C: KӨ1·KӨ2 D: KӨ1-KӨ2
- 已知反应H2(g)＋S(s)＝H2S(g)和S(s)＋O2(g) ＝SO2(g)的平衡常数为Kθ1和Kθ2，则反应: H2(g)＋SO2(g)＝H2S(g)＋O2(g)的平衡常数为（ ）。 A: Kθ1＋Kθ2 B: Kθ1/Kθ2 C: Kθ1×Kθ2 D: Kθ1-Kθ2