实验室用浓盐酸与二氧化锰反应制取氯气,下列说法中正确的是(气

实验室用浓盐酸与二氧化锰反应制取氯气,下列说法中正确的是(气体体积均在标准状况下测定)

A.若提供0.4molHCl,MnO2不足量,则可制得氯气2.24L

B.若提供0.4molHCl,MnO2过量,则可制得氯气2.24L

C.若有0.4molHCl参与反应,MnO2不足量,则可制得氯气2.24L

D.若有0.4molHCl被氧化,MnO2不足量,则可制得氯气2.24L

 

答案

C

解析:略

 

相关题目

 People who drink wine              to drive from now on. A.d
 People who drink wine              to drive from now on. A.don’t allowed     B. isn’t allowed    C. mustn’t allow    D. mustn’t be allowed  
在两个相同的薄壁塑料瓶(质量忽略不计)内分别装入体积
在两个相同的薄壁塑料瓶(质量忽略不计)内分别装入体积相等、密度为ρ甲和ρ乙的两种液体后密封,再把它们放入两个装有水的容器中,处于如图状
 —When can you get my car repaired? I need it tomorrow morning.   —It ___
 —When can you get my car repaired? I need it tomorrow morning.   —It ______ be ready by 8:00 A. can     B. need            C. might        D. should
移植别人的器官到患者体内之前需要配型,否则不易成活,
移植别人的器官到患者体内之前需要配型,否则不易成活,从免疫学概念分析,配型主要是寻找与患者器官相同或相类似的     A.受体         
Of the two lectures, the first was by far _____, partly because the speaker had
Of the two lectures, the first was by far _____, partly because the speaker had such a dynamic style. A. the best            B. better               C. the better      
574800保留3个有效数字为                 ;  
574800保留3个有效数字为                 ;  
—How far is it from your home to school? —It’s about twenty ______ walk.
—How far is it from your home to school? —It’s about twenty ______ walk. A. minute’s                             B. minutes’                  
过 零 丁 洋 文天祥 辛苦遭逢起一经,干戈寥落四周星。 山
过 零 丁 洋 文天祥 辛苦遭逢起一经,干戈寥落四周星。 山河破碎风飘絮,身世浮沉雨打萍。 惶恐滩头说惶恐,零丁洋里叹零丁。 人生自古谁无死?留

最新题目