The atom is the basic unit of matter. “atom” means ___. A. particle B. molecule C. element D. substance 相关知识点: 试题来源: 解析 A。“atom”是原子,是物质的基本粒子,与“particle”意思相符。“molecule”是分子;“element”是元素;“substance”是物质。反馈...
The water molecule is___two hydrogen atoms and one oxygen atom.水分子由二个氢原子和一个氧原子构成。(p.19Chemical Structure第3-4行) ▲ make up of常用被动式,意为“由……所组成”。如:①The train was made up of 15 coaches.这列火车有15节车厢。②All living matter is made up of cells...
13. The water molecule is___two hydrogen atoms and one oxygen atom. 水分子由二个氢原子和一个氧原子构成。(p.19 Chemical Structure 第3—4行) ▲ make up of常用被动式,意为“由……所组成”。如:1 The train was made up of 15 coaches. 这列火车有15节车厢。2 All living matter is made ...
百度试题 结果1 题目The water molecule is made of two hydrogen atoms and one o___ atom.相关知识点: 试题来源: 解析 oxygen 反馈 收藏
百度试题 结果1 题目The water molecule is made up of two___ (氢)atoms and one___ (氧)atom.相关知识点: 试题来源: 解析 marched 反馈 收藏
5 Atom X is the central atom in a molecule.In this molecule, atom X has four pairs of valence electrons in its outer shell.The four pairs of valence electrons include at least one bond pair and at least one lone pair.What could be a possible shape for the molecule? C A linear B no...
What is an atom in a molecule? J Phys Chem A The derivation of the Hirshfeld atoms in molecules from information theory is clarified. The importance for chemistry of the concept of atoms in molecules (AIM) is stressed, and it is argued that this concept, while highly useful, consti......
Diatomic molecules are when only two atoms combine. An example of adiatomic moleculeis carbon monoxide (CO) made of a single atom of carbon and one of oxygen. If the two atoms are the same element, it is called ahomonuclear diatomic molecule, such as oxygen (O2) and nitrogen (N2).Poly...
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(23-24高三上·河北沧州·期中)A methane molecule is (compose) of one carbon atom attached to four hydrogens.相关知识点: 试题来源: 解析 [答案]composed [详解]考查动词语态。句意:甲烷分子是由一个碳原子和四个氢原子组成的。句中be composed of为固定短语,意为“由……组成”,设空处应用过去分词,...