A:已知,则对应的化学反应可以表示为:2CO2( g) + 6H2(g)CH3CH2OH(g) + 3H2O(g)
B:将某浓度氢氟酸溶液升高温度,氢氟酸的电离平衡常数Ka将变大
C:常温下,向纯水中加入碳酸钠,水的电离程程度变大,Kw变大
D:化学平衡常数K与温度有关,随温度的升高,K可能增大也可能减小,或者不变
读一读,给下列句子排序。
____ He washed clothes and cleaned his room on Saturday afternoon.
____ Last weekend was Wu Yifan's grandma's birthday.
____ On Sunday morning, he played football with his friends.
____ He visited his grandma on Saturday morning.
____ He watched TV Saturday evening.
下列划线的字注音全对的一项是( )。