问题
单项选择题
已知反应A+2B→2C的速率方程为r=kc(A)c(B)，则该反应是______。
A．元反应
B．三级反应
C．二级反应
D．一级反应
答案
参考答案：C
解析：在速率方程r=kcα(A)cβ(B)中，α+β为反应级数，故正确答案为C。
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已知反应A+2B→2C的速率方程为r=kc(A)c(B)，则该反应是______。
A．元反应
B．三级反应
C．二级反应
D．一级反应
参考答案：C
解析：在速率方程r=kcα(A)cβ(B)中，α+β为反应级数，故正确答案为C。
| 阅读理解。 | ||||||||||||
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| A. In Hangzhou. B. In Toronto. C. In Tokyo. D. In New York. | ||||||||||||
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| A. Wang Yun. B. Leo. C. Suzuki. D. Alice. | ||||||||||||
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| A. Watching TV. B. Playing sports. C. Going fishing. D. Going out with friends. | ||||||||||||
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| A. Soccer. B. Basketball. C. Tennis. D. Ping-pong. | ||||||||||||
| 5. What doesn't Wang Yun like doing? | ||||||||||||
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