根据实验室制取某种干燥气体的装置图(下图),判断气体发生装置中

根据实验室制取某种干燥气体的装置图(下图),判断气体发生装置中的固体药品和液体可能是

 A.Zn和稀H2SO4           B.Na2SO3固体和浓H2SO4

 C.KI固体和浓H2SO4       D.CaO和浓氨水

答案

B

相关题目

Your brain isn’t a muscle, but you can treat it like one Many people focus on
Your brain isn’t a muscle, but you can treat it like one Many people focus on physical fitness, but few know that brain fitness is also something you can work on. In fact, you can exercise your brai
—Who called me this morning when I was out?       —A man calling _____
—Who called me this morning when I was out?       —A man calling ______ Robert.          A. him                     B. himself                 
(08年安庆一中三模文) 已知,且则的最小值为        
(08年安庆一中三模文) 已知,且则的最小值为           .
五种短周期元素的某些性质如下表所示: 元素代号XWYZQ 原子
五种短周期元素的某些性质如下表所示: 元素代号XWYZQ 原子半径(×10-12 m)379966104154 主要化合价+1-1、+7-2-2、+6+1 下列说法正确的是(     )  A.
下列说法正确的是 A.二氧化硫 ----无色无味气体 ---化学式 S
下列说法正确的是 A.二氧化硫 ----无色无味气体 ---化学式 SO2       B.氯化铁溶液------浅绿色-----溶质是FeCl2 C.两个氢氧根离子----- 2OHˉ D.氧化镁中
Besides entertainment and beautiful lanterns, another important part of the Lant
Besides entertainment and beautiful lanterns, another important part of the Lantern Festival, or Yuanxiao Festival is eating small dumpling balls made of glutinous rice flour. We call these balls Yuan
C
C
地壳中含量最多的金属元素是( ) A.氧   B.硅   C.铝
地壳中含量最多的金属元素是( ) A.氧   B.硅   C.铝   D.铁

最新题目