Salt water is a/an ___. A. element B. compound C. mixture D. solution 相关知识点: 试题来源: 解析 D。盐水是溶液。选项 A“element”是元素;选项 B“compound”是化合物;选项 C“mixture”是混合物,盐水严格来说是溶液;选项 D“solution”是溶液。反馈...
Question: Is water heterogeneous or homogeneous? Water Water is a compound that is made from atoms of hydrogen and oxygen combining with each other. Water is one of our most important resources and is necessary for life. Answer and Explanation: ...
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;CONSTITUTION: This photographic element contains a silver halide emulsion reactively combined with the sulfide compound expressed by a formula. In the formula, X is independently -O-,-NH- or -NR-, R is a substituent, each of (m) and (n) is independently 0, 1 or 2, M is -H or a...
While it is sometimes suggested that 'water' was regarded as an element prior to the discovery of its compound nature in the 18th century, most premodern understandings of water emphasized the diverse characteristics of many waters. Such views were developed and sustained within several distinct co...
Which element has the highest electronegativity? Which elements are found in the compound NaOH? What is the most abundant organic compound on Earth? What is the difference between an element and a compound? What is the most metallic element? Which element has the highest atom...
After 2 h, when the titanium metal had completely dissolved, a complexing agent was added. The amount of complexing agent depended on the compound used; that is, 1.5 equiv. of glycolic acids (7.5 mmol) and 1.0 equiv. of citric acid (5 mmol) was added per mole of titanium.22 Excess ...
The first section of the thesis discusses the design, finite element analysis, and qualitative testing of a ... AM Goyzueta 被引量: 5发表: 2013年 Pad surface management as a strategy to reduce the cost of ownership for CMP It is well recognized that one of the most expensive unit ...
The improved flange comprises an anchoring element or outer flange, connected to a flexible conduit tube or flexible sleeve, in which is attached an O-rin... O Evodio,S Jorge,T Amado,... - US 被引量: 4发表: 2003年 加载更多 研究点推荐 Water-closet compound gasket water-closet gasket ...
摘要: PROBLEM TO BE SOLVED: To provide a water soluble deodorant element manufactured without solving or decaying a hydrolyzable base material and having a superior fixing property of the deodorant.收藏 引用 批量引用 报错 分享 文库来源 其他来源 求助全文 DEODORANT COMPOSITION AND WATER SOLUBLE ...