创建自己的小题库
搜索
【简答题】
氯化亚汞（Hg 2Cl 2），别名甘汞，是一种毒性物质，主要应用于药物和农用杀虫剂、防腐剂等，氯化亚汞中氯元素为－1价，汞元素的化合价是（ ） A．+1 B．+2 C．－1 D．+3
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈
收藏
举报参考答案：
举一反三
【单选题】很多国家已停止使用含铊的杀虫剂。元素周期表中铊的数据见右图，下列说法正确的是
A.
TI元素是一种主族元素
B.
TI元素的相对原子质量是204
C.
铊元素的质量数是204.4
D.
TI原子最外层有3个能量相同的电子
【单选题】Many Americans harbor a grossly distorted and exaggerated view of most of the risks surrounding food．Fergus Clydesdale, head of the department of food science and nutrition at the University of Massac...
A.
They overlook the risks of the food they eat.
B.
They overestimate the hazards of their food.
C.
They are overoptimistic about the safety of their food.
D.
They overstate the government's interference with the food industry.
相关题目：
【单选题】很多国家已停止使用含铊的杀虫剂。元素周期表中铊的数据见右图，下列说法正确的是
A.
TI元素是一种主族元素
B.
TI元素的相对原子质量是204
C.
铊元素的质量数是204.4
D.
TI原子最外层有3个能量相同的电子
【单选题】Many Americans harbor a grossly distorted and exaggerated view of most of the risks surrounding food．Fergus Clydesdale, head of the department of food science and nutrition at the University of Massac...
A.
They overlook the risks of the food they eat.
B.
They overestimate the hazards of their food.
C.
They are overoptimistic about the safety of their food.
D.
They overstate the government's interference with the food industry.
参考解析：
AI解析
重新生成
题目纠错 0
发布
