【名词&注释】
电离平衡常数(ionization equilibrium constant)、一元酸(monoprotic acid)
[单选题]40_____.
A. heavy
B. easy
C. hard
D. safe
查看答案&解析查看所有试题
学习资料:
[单选题]已知室温时,0.1mo1/L某一元酸HA在水中有0.1%发生电离,下列叙述错误的是:
A. 该溶液的pH=4
B. 升高温度,溶液的pH增大
C. 此酸的电离平衡常数约为1×10-7
D. 由HA电离出的c(H+)约为水电离出的c(H+)的106倍
[单选题]With the world changing fast, we have something new______with all by ourselves every day.
A. deal B. dealt
B. to deal D. dealing
本文链接:https://www.51ksbd.net/show/j8d4ev.html