百度试题 结果1 题目What is the chemical formula for water?相关知识点: 试题来源: 解析 答案:The chemical formula for water is \( H_2O \)。反馈 收藏
about关于,of……的,表示所属关系,on关于,在……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...
Water is an essential chemical substance on earth. It has some unique properties such as being a very good solvent, a polar molecule, having high heat capacity, relatively high evaporation point, and self-ionization. All those properties made water to be an essential component for supporting ...
What may chemical substances accumulate in? A. Water B. Air C. Soil D. Space 相关知识点: 试题来源: 解析 C。中文解析:“Some chemical substances may also accumulate in the soil and have a long-term impact on the ecological environment.”表明一些化学物质会在土壤中积累。
ChemicalAid Calculators Elements Info Help 🌎 English 👤 What is the chemical formula for sea water?What is the chemical formula for sea water?CH2OExplanation Said out loud, "CH2O" sounds like "sea H2O" which is the same as "sea water"....
一、 词汇运用1. What is the chemical (化学) symbol_ (符 ) of water?2. Come into (进入) the hous
2.There are several chemical factories___ waste water into the stream.3.What's ___,the factory makes too much noise ...4.Noise is ___ to humans' health.5.People who work and live in noisy conditions often ___ deaf.6...many teenagers...
百度试题 结果1 题目1. What is the chemical (化学)_ symbol_(符 ) of water? 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
Assume we add a certain chemical to water. What could happen? A. The water will boil. B. The water will freeze. C. The chemical will disappear. D. The properties of the water may change. 相关知识点: 试题来源: 解析 D。加入化学物质可能会改变水的性质。选项 A,不会因为加化学物质就沸腾...
cardboard boxes, styrofoam padding, and bubble wrap are some common examples that protect goods during transport. Before a parcel arrives safely at the consumer’s door, it has already left a trail of environmental destruction in its wake. And all too often, this excess...