题目

在2 L的密闭容器中发生反应后各物质的物质的量随时间变化的曲线如图所示。回答下列问题：（1）该反应的反应物和生成物分别是_______________，反应方程式为_______。（2）0～10 s的平均反应速率v(H2)= ________v(HI)=____________________。（3）根据上述反应速率数值，分析用不同物质表示同一化学反应在同一时间内，化学反应速率值是否必须相同？_________________________________________。（4）能否用I2(s)表达该反应的反应速率，为什么？__________________________。 Tom and Mike are good friends．They are kind to children，   They want to find summer jobs．One day Tom tells Mike that Beidaihe Kids Summer Camp needs help with sports, music and computers．They are both very glad to hear(听说)this． Tom can play basketball and volleyball and he can swim，too．Mike can play the violin，the trumpet, the drums and the guaitar．Tom and Mike like computers very much，Can they join the Summer Camp?小题1:Tom and Mike want to       .  A．be good with children    B．find summer jobs    C．get help from the Camp   小题2:The Summer Camp needs help with        ? A．Flying kites放风筝．    B．Sports，music and computers．    C．Drawing pictures．   小题3:Tom can play           ． A．basketball and volleyball  B．computer games  C．violin小题4:Mike can play           ． A．the drums    B．volleyball    C．football   小题5:What do Tom and Mike both like? A．Football．    B．Computers．    C．Swimming