题目

某化学兴趣小组，利用如图所示装置可以验证非金属性的变 化规律。 （1）仪器A的名称为________________， 干燥管D的作用是_______________________。 （2）C  Si  S的非金属性由强到弱的顺序是______________ （3）实验室中现有药品  稀盐酸、稀硫酸 Na2SiO3溶液 以及 Na2 CO3和Ca CO3固体，请选择合适药品设计实验,验证C  Si  S的非金属性的变化规律；装置A、B、C中所装药品分别为_______、___________、____________，写出B中反应的离子方程式为_________________________________________综合填空 　　Dr Hong works at Qinghua University. He is an e__(1)__ on bird fossils. He was b__(2)__ in Hangzhou in 1957. When he was young, Hangzhou was f__(3)__ of birds and animals. His f__(4)__ hobby was walking in the countryside looking for something u__(5)__. He was i__(6)__ in fish fossils. In 1990 he found a large n__(7)__ of bird fossils and started to study them. In 1993 he was l__(8)__ enough to see tile confueiusornis fossils. In early 2000, he r__(9)__ to Beijing to work from Europe. He hoped to learn much m__(10)__ about the early birds and dinosaurs of China.