01 化合物(Compound)、单质(Element)和混合物(Mixture)区分 首先,Element是含有1种atom(原子)的物质,比如O2,Compound是含有2种及以上atom的物质,比如H2O,CO2。Compound 和Element是一种物质,属于纯净物。 Mixture是2种及以上物质混在一起,属于混合物,比如H2O和CO2混在一起,就是mixture。 02 Solid、Liquid 和 Gas...
mixture = two or more elements and/or compounds physically mixed together 2个或更多element/compound混合起来（不是化学物质），比如空气是N2, O2, CO2等各气体的mixture
QUALITATIVE AND QUANTITATIVE ANALYSIS OF CHEMICAL ELEMENT, COMPOUND, AND MIXTUREPROBLEM TO BE SOLVED: To perform the qualitative and quantitative analysis of a sample easily by obtaining the spectrum of a known element by x-ray irradiation and superimposing a spectrum obtained by irradiating the ...
酒精属混合物,由乙醇和水混合成酒精溶液,溶液是混合物 元素就是:比如Fe(铁元素),要将其与铁原子区分开来,原子是一个,元素是一种,比如一块铁,是由Fe元素组成,由无数个Fe原子构成. 化合物:由2种或2种以上的元素组成的物质 混合物:2种或2种以上物质构成的物质 分析总结。 比如fe铁元素要将其与铁原子区分开...
structure of element,compound and mixture 收藏 回复 打赏 113.254.28.* 快试试吧,可以对自己使用挽尊卡咯~ ◆ ◆ what is different between of them?? () 打赏 anjiayikele 超新星 11 对化学不精通 113.254.28.* 快试试吧,可以对自己使用挽尊卡咯~ ◆ ◆ can anyone answer my question?
el·e·mentˈel-ə-mənt 1 :any of the four substances air, water, fire, and earth formerly believed to compose the physical universe 2 :a constituent part: as a :any of more than 100 fundamental substances that consist of atoms of only one kind and that singly or in co...
Chocolate chip cookie Mixture, hetero CH3Oh (alcohol) Pure substance, compound Oxygen gas Pure substance, element Taco Mixture, hetero Gasoline Mixture, homo Lucky charms Mixture, hetero Brass Mixture, homo Dry ice (CO2) Pure substance, compound Graphite Pure substance, element Steel Mi...
of water (H₂O) and salt (NaCl). There are four different elements present, but they are not all combined chemically. The water molecules and salt molecules exist together but aren’t chemically combined. Therefore, salt water is not a compound. Instead, saltwater is considered amixture. ...
题目In chemistry, a mixture is different from a ___. A. compound B. element C. atom D. molecule 相关知识点: 试题来源: 解析 A。在化学中,混合物不同于化合物,“compound”是化合物,“element”是元素,“atom”是原子,“molecule”是分子。反馈 收藏 ...
百度试题 结果1 题目5 Which of the following shows a mixture of a compound and an element? B中F BA BC D 相关知识点: 试题来源: 解析 B 反馈 收藏