上面,for为了,表示目的,symbol后接of sth,表示象征;后接for sth.表示符号,记号,根据the chemical symbol...water可知,此处指的是"水的化学符号"。故选:D。 【思路点拨】水的化学符号是什么? 【点评】本题考查介词的用法,在熟知所供词的含义基础上,根据句意,从而判断出正确答案。
百度试题 结果1 题目What is the chemical symbol for sodium? A) S B) Na C) So D) N 相关知识点: 试题来源: 解析 答案:B) Na 反馈 收藏
What is the chemical symbol of boron? What is the chemical symbol for gold? Which chemical element has the symbol Pt? Which chemical element has the symbol B? What is the element symbol for cesium? What chemical element is Br? Which chemical element has the symbol Na?
会员中心 VIP福利社 VIP免费专区 VIP专属特权 客户端 登录 百度文库 其他 What is the chemical symbol for gold?What is the chemical symbol for gold? A. Au B. Ag C. Fe D. Hg 答案: A©2022 Baidu |由 百度智能云 提供计算服务 | 使用百度前必读 | 文库协议 | 网站地图 | 百度营销 ...
An atomic cation with a charge of +1 has the following electron configuration: (Ar) 4s^2 3d^{10} 4p^1. What is the chemical symbol for the ion? What does the atomic number of an element indicate? Which of the following atoms has the most valence electrons? a) N...
What is the chemical symbol for gold? A. Ag B. Au C. Fe D. Hg 相关知识点: 试题来源: 解析 a) Vincent van Gogh 答案:B. Au 以上是一些年月日练习题及答案,希望能够帮助大家更好地备考和提升自己的能力。通过不断地练习和巩固知识,我们能够更好地应对各类考试和挑战。同时,也希望大家在...
What is the chemical symbol for oxygen?A) OB) OxC) OcD) On 相关知识点: 试题来源: 解析A氧的化学符号在元素周期表中确定为O。选项分析如下:A) O:正确,氧的标准化学符号。B) Ox:错误,"Ox"并非任何元素的官方符号,可能是误解为单词缩写。
b) How many electrons does the ion have? c) How many 3d electrons are in the ion? An atomic cation with a charge of +2 has the following electron configuration: (Kr) 5s^2 4d^9. a. What is the chemical symbol for the...
What is the chemical symbol of tin? What is the chemical formula for Magnesium Carbonate? A) Mg2(CO3)2 B) Mg2CO4 C) Mg2C D) MgCO3 What is the most common carbonate mineral? What is the chemical symbol for indium? What is the atomic mass of calcium carbonate?
What is the chemical formula for carbon tetrahydride? What is the chemical symbol for calcium? What is the formula for the compound formed from calcium and oxygen? What is the name of the compound with the formula (Nh4)2SO4 ? What is calcium bicarbonate's common name?