7 All matter is made up of atoms and molecules.(a) Describe the arrangement, separation and motion of gas molecules.arrangementseparationmotion 相关知识点: 试题来源: 解析 (a) 描述气体分子的排列、分离和运动。 ### 排列 气体分子的排列是非常松散的,它们之间的距离相对较大,没有固定的位置,可以自由...
328K Learn basic information about what an element is, what they are made of, how and why they are different, and how scientists have organized them into the periodic table. Related to this QuestionWhat is definition of element? What gives an element its characteristics? What characteristic ...
Explain how the periodic table is organized and what are the families of elements on the table.Why does the size of atoms increase going down a group on the periodic table?What is the periodic trend in ionic size for the cations of the following alkaline earth e...
Describe fractional coordinates and scattering parameters of the basis atomsname
Jack dude 不变的是变化 The terms "cis" and "trans" have different meanings depending on the context. In chemistry, they refer to the spatial arrangement of atoms or groups around a double bond, while in gender studies, they refer to a person's gender identity. ...
9.Howarebiologicalmoleculesformed?Howaretheybrokendown? 10.Whatarecarbohydratesandwhatfunctionsdotheyperform? 11.Whatareproteinsandwhatfunctionsdotheyperform? 12.Whatarelipidsandwhatfunctionsdotheyperform? 13.Whatarenucleicacidsandwhatfunctionsdotheyperform?
(a) Describe the arrangement, separation and motion of gas molecules.arrangementseparationmotion 相关知识点: 试题来源: 解析 (a) 描述气体分子的排列、分离和运动。 ### 排列 气体分子的排列是非常松散的,它们之间的距离相对较大,没有固定的位置,可以自由地在容器中移动。气体分子之间的相互作用力较弱,不足...
Atoms rarely exist independently but they tend to form molecules by combining with other atoms. Molecules of an atom are bound together by electrostatic force. When atoms join together they form covalent bonds that hold the atom together that are not easily broken....
Give reasons why most of the compounds formed by transition elements are colored. Describe chemical reactions and how they relate to chemical quantities. Why is the periodic table organized the way it is? List some properties of a substance that would lead you to believe it con...
How do you think the formation of Earth was similar to that of other planets in the solar system, and how may have it been different? Explain the mechanism of how light is absorbed by atoms. What effect did you observe when different colored filters were ...