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In a chemistry experiment, you need to transfer a small amount of liquid. What tool can you use? A. ruler B. compass C. test tube 相关知识点: 试题来源: 解析 C。在化学实验中,需要转移少量液体时可以用试管。尺子是用来测量长度的。圆规是用来画圆的。
试题来源: 解析 【解析】答案C.根据选项中A expression的发音为/ik'sprefan/意为“表示,表达"B.extremely的发音为/ik'strimli/意为“非常”;C.experience的发音为 /ik'spirans/意为“经历,经验”;D.experiment的发音为/ik'sperimant/,意为“实验,试验”结合句意及发音,故选C ...
a只有几篇文献说温度对泡沫有影响。 Only then several literature said the temperature is influential to the froth. [translate] athe following sections explain what some terms used in chemistry mean. 以下部分说明什么有些期限在化学手段使用了。 [translate] ...
--For her ___ in chemistry. A. invention B. discovery C. imagination D. advice 2【题目】3. -What did Madam Curie win the Nobel prize for?For herin chemistry.A. inventionB.discoveryC. imaginationD.advice 3【题目】What did Madarm Curie win the Nobel Prize for?For herin chemistry...
The Golden Rules of Organic Chemistry Your goal should be to understand,not memorize organic chemistry.The following 7 Golden Rules should be learned at the beginning of this semester.These simple ideas explain a very large number of things about the way organic molecules interact.Thus,...
D. The students were in a hurry. 相关知识点: 试题来源: 解析 A。解析:测量物质质量不一致可能是因为天平没有正确校准,A 选项正确。B 选项物质颜色亮不会影响质量测量。C 选项实验室冷一般不会对质量测量产生直接影响。D 选项学生匆忙可能会导致操作不规范,但不一定直接影响质量测量结果。
... in terms of Chemistry ? Matter can be classified in various ways according to its structure, behaviours and physical and chemical properties. The main classifications of matter include the categories element and compound, either of which may also be called a substance (which is a less speci...
But the previous volume 5 of this monograph has proven that this official science is in a shocking error already from very foundations of it - means from the understanding of gravi... DJ Pajak 被引量: 0发表: 0年 What Controls Regiochemistry in 1,3-Dipolar Cycloadditions of M眉nchnones ...
In physical chemistry, this attraction between atoms and molecules is described in detail by the van der Waal's force. The noble gases are made up of very stable atoms and have a low chemical reactivity, which is why they can more easily exist in the monatomic state. These gases also ...