A:发生反应时,各物质的反应速率大小关系为:v(X)=' v(Y)=' 2v(Z)
B:图a中反应达到平衡时,Y的转化率为37.5%
C:T0℃时,该反应的平衡常数为33.3
D:该反应正反应的反应热△H<0
阅读短文,选择正确的答案。
Chen Jie and Chen Lin are sisters. Chen Jie is 14. She's 2 years younger than Chen Lin. But she's taller than Chen Lin. Chen Jie is 46 kilograms. She's l kilogram heavier than Chen Lin. Chen Jie likes sports. She plays sports every day. So she's stronger than Chen Lin. Chen Jie has short hair, but Chen Lin has long hair. They often wear the same size shoes. They wear size 36. They love each other.
①我们只能迎难而上,努力向前方挺进。
②因为退缩解决不了问题。
③人走在路上,是可以停歇一下,却不可能停一辈子。
④纵使前路布满荆棘,却也不能退缩。
⑤前方的路还是需要自己去探索,去经历。