aMetallic materials are inorganic substances which composed of one or more metallic elements and may also contain some nonmetallic elements .examples of metallic elements are iron , copper ,al ,nickel ,and titanium. Nonmetallic elements such as carbon, nitrogen, and oxygen may also be contained in...
Which of the following substances are excluded by “drugs” according to this article? A. Some kind of wine. B. Coffee. C. Cigarette. D. Penicillin. 相关知识点: 试题来源: 解析 D 正确答案:D 解析:第2段的开头部分描述了一些我们没有意识到能上瘾的物质,如生活中的烟、酒、咖啡和部分药片等...
28 Which substances are suitable to prepare pure copper(II) chloride?Bahan-bahan yang manakah sesuai untuk menyediakan kuprum(II) klorida tulen? D A Hydrochloric acid and copper Asid hidroklorik dan kuprum B Sodium chloride and copper(II) nitrate Natrium klorida dan kuprum(II) nitrat C ...
aOrganic tin compounds are substances which contain an organic moiety in their structure. OC can only be determined in accordance with the standard after derivatization. 有机罐子化合物是在他们的结构包含有机份额的物质。 OC可能只是坚定的与标准符合在衍生作用以后。[translate]...
The solubility rule includes all these factors and represents a chart regarding the solubility of multiple types of inorganic compounds in different solvents. Answer and Explanation: According to the solubility rule: (1) All the ...
apartially have, can do partly, or partially available 部份地有,能做部分或者部份地可利用 [translate] acaustic injury 刻薄伤害 [translate] a substances which are carcinogenic, mutagenic or toxic to reproduction 对于繁殖是致癌,诱导有机体突变的物质或有毒的物质 [translate] ...
百度试题 结果1 题目12 Which two substances are the products of photosynthesis? D A carbon dioxide and glucose B carbon dioxide and water C oxygen and carbon dioxide D oxygen and glucose 相关知识点: 试题来源: 解析 D 反馈 收藏
Non-gaseous substances which___naturally as pure elements, such as gold, are rare and are often highly valued. A. happen B. occur C. perceive D. assume 相关知识点: 试题来源: 解析 B 本题考查句意 句意为“非气态物质,那些自然……就像纯元素,像金,非常稀有并且经常是高价值的” 这里应该...
abei jin: shi jing shanr* City Guide 北金: shi京shanr*城市指南 [translate] aCity:*veun 城市:* [translate] asubstances which are carcinogenic, mutagenic or toxic to reproduction 对于繁殖是致癌,诱导有机体突变的物质或有毒的物质 [translate] ...
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