In a chemistry class, we learn about H2O. What does “H2O” mean? A. Hydrogen Oxygen B. Hydrogen two Oxygen C. Hydrogen dioxide D. Water 相关知识点: 试题来源: 解析 D。H2O 是水的化学式,表示由两个氢原子和一个氧原子组成的水分子。选项 A、B 表述错误,选项 C 是二氧化氢,不是 H2O 的...
A. Hydrogen Oxide B. Hydroxide Oxide C. Hydronium Oxide D. Dihydrogen Monoxide 相关知识点: 试题来源: 解析 D。“H2O”是“Dihydrogen Monoxide”的缩写,即水。选项 A“Hydrogen Oxide”表述不准确;选项 B“Hydroxide Oxide”错误;选项 C“Hydronium Oxide”也不对。只有选项 D 是水的正确表述。
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much more complex chemical composition. With plenty of particulates and molecules found in water sources we encounter everyday, pure H2O is quite scarce. Vapor distilled water is created in a lab that filters out all the excess material and is much purer than the water typically found in ...
Therefore, PAC has a tendency to gradually replace aluminum sulfate in the field of water treatment, and its disadvantage is that the price is higher than that of traditional flocculants. In addition, from the point of view of solution chemistry, PAC poly aluminium chloride i...
This question shows research effort; it is useful and clear 25 Save this question. Show activity on this post. Both first-order and second-order Jahn-Teller distortions play a very important role in chemistry. It is often said that the Jahn-Teller effect is based on symmetry argum...
Traditionally bases have a bitter taste while acids are sour, but in chemistry, the definitions have evolved so that substances are either bases or acids using their chemical properties. This classification is important because acids and bases can react to form salts, and they are the basis of ...
What is water glass in chemistry? What are ionic compounds composed of? What is an electrovalent compound? What are the physical properties of water? What is the common name for H2O? What is the molecular weight of water? What is dihydrogen monoxide? What releases hydrogen ions in water?