Interstitial compounds are formed when small atoms are dropped under the curved lattice of metals. Whether the following is not the characteristics property of interstitial compounds? View Solution The first compound of noble gases prepared in laboratory was ...
Some words are formed by other words. They are called compounds. (根据句意单词拼写) 相关知识点: 试题来源: 解析 combining 【详解】 考查动词。句意:有些单词是由其他单词组合而成的。它们被称为复合词。根据“compounds (复合词)”可知,此处指由其他单词组合而成,空处表示“组合”,应用动词combine,且需...
The meaning of COMPOUND is something formed by a union of elements or parts; especially : a distinct substance formed by chemical union of two or more ingredients in definite proportion by weight. How to use compound in a sentence.
so the water molecule is electrically neutral on the whole, but it is a polar compound molecule. Due to the strong electronegativity of oxygens, the electrons of hydrogen atoms in water molecules are far away from the hydrogen nucleus, resulting in a The change of vocabulary is th...
Compounds are words formed by combining affixes and stems.A.正确B.错误的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,刷题练习的工具.一键将文档转化为在线题库手机刷题,以提高学习效率,是学习的生产力工具
句意:我们都知道,由其他单词组合而成的单词叫做复合词,例如彩虹。A. collection收藏品; B. rainbow彩虹;C.WTO世界贸易组织; D. exchange交换。结合句中“words formed by combining other words are called compounds”可知,把其他单词组合而成的单词叫做复合词,rainbow=rain+bow,符合题意,故选B。
When an acid is dissolved in water, ions are formed as a result of the transfer of a hydrogen ion(proton) from the acid molecule to the water molecule---for example, 答案 如今,化学家们已经知道了有成千上万种化合物。但是如果把每个化合物看成一个个体来研究,是不可能了解这么多数量化合物中...
a polymeric solid from which arederivedthe tetrohydroaluminates (important reducing agents).Lithium aluminum hydride(LiAlH4), formed by the reaction of aluminum chloride with lithium hydride, is widely used in organic chemistry—e.g., to reduce aldehydes and ketones to primary and secondary alcohols...
a微笑的泪 smiling tears;[translate] aMn-doped zinc aluminate phosphors were prepared in our study Mn被掺杂的锌铝酸盐类黄磷在我们的研究中准备了[translate] aorder to identify the compounds formed and understand the role 辨认化合物的命令形成了并且了解角色[translate]...
Of the wide variety ofcompoundsformed by manganese, the most stable occur in oxidation states +2, +6, and +7. These are exemplified, respectively, by the manganous salts (with manganese as the Mn2+ion), the manganates (MnO42−), and the permanganates (MnO4−). As in the case of...