sat which of the following compounds is isoelectronic with c

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sat
which of the following compounds is isoelectronic with co(carbon monooxyde)
a.H2
b.Cl2
c.N2
d.CO2
e.NO2
为什么?
given the hypothetical reaction 2A+B=C+3D ,the equilibrium constant for this reaction is
I.directly proportional to the concentration of D cubed.
II,inversely proportional to the concentration of A.
III.inversely proportional to the concentration of C.
I
不是平衡常数只受温度影响么?为什么?
第二题为什么II不对啊？

（1）which of the following compounds is isoelectronic with co(carbon monooxyde)
题目的意思是以下的化合物有哪种是和CO（一氧化碳）等电子的?
C的电子数是6,质子数6,中子数6.相对原子质量为中子+质子=12.核外电子排布为 2：4
O的电子数是8,质子数8,中子数8.相对原子质量为中子+质子=16.核外电子排布为 2：6
所以CO的电子数是6+8=14
5个选项的电子数分别为
a,H2=2 b,Cl2=34 c,N2=14 d,CO2=22 e.NO2=23
所以答案选C
（2） given the hypothetical reaction 2A+B=C+3D ,the equilibrium constant for this reaction is
给出假设的反应方程2A+B=C+3D ,对反应的平衡常数,下列说法正确的是：
这个反应中的产物和原料的浓度都是影响反应的平衡常数的（当然在液相和气象反应中的固态物体是不影响的）题目中没有明确说明的情况下,视为全部为非固体：
具体的方程为 K=C*D^3/A^2*B
答案中 1说的是反应常数与D含量的3次方成正比.
11说的是反应常数与A含量成反比
111说的是反应常数与C含量成反比
根据平衡常数方程可以得出1是正确答案.

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