In chemistry, concentration refers to the amount of a substance in a defined space. Another definition is that concentration is the ratio ofsolutein a solution to eithersolventor totalsolution. Concentration is usually expressed in terms ofmassper unitvolume. However, the solute concentration may al...
What does the woman mean A.The chemistry class.B.The English class.C.The chemistry and English classes.相关知识点: 试题来源: 解析 B [解析] 女士问这里是否是英语教室,男士回答说这里是理化实验室,可见女士寻找的是B。故本题答案为B。[听力原文]W: Is this the English class M: It is the ...
What does sec mean in organic chemistry?Secondary carbon atoms:Secondary carbon atoms will be discussed. In addition, the abbreviation seen for secondary carbon atoms will be addressed.Answer and Explanation: Become a Study.com member to unlock this answer! Create your account View this answer ...
The weight of an object depends on its mass, but the two terms don't mean the same thing. Weight isthe forceexerted on mass by a gravitational field: W=mgW=mg where W is weight, m is mass, and g is acceleration due to gravity, which is about 9.8 m/s2on Earth. So, weight ...
38What does inutilities mean? 19What is the subtitle of the play the man of mode? 28Is iceland the safest country? 24What causes gushing period? 23Why are lorises nocturnal? 23Can you prove or disprove a hypothesis? 41Why is pyrene aromatic? 26What does paulina mean?Copyright...
In the chemistry experiment, a precipitate formed. What does this mean? A. A gas was released. B. A solid formed in the liquid. C. The liquid changed color. D. The temperature increased. 相关知识点: 试题来源: 解析 B。解析:有沉淀形成意味着液体中有固体形成。选项 A 有气体释放 ...
adoes not mean I do not want youyou 不意味我不想要youyou [translate] aVision,I love you more than I love me. 视觉,我爱你更多比I爱我。 [translate] aMy hobby is My hobby is [translate] aLittle information 一点信息 [translate] a他们正在屋里说话吗 In their room is speaking [translate]...
Quality assurance in analytical chemistry - what does it mean?Mundschenk, H.ACCREDITATION AND QUALITY ASSURANCE
What does a polymer in chemistry mean?Question:What does a polymer in chemistry mean?Polymers:Polymers occur naturally and they can also be synthesized. Natural polymers include starch, cellulose, DNA, proteins and many more. Synthetic polymers include nylon, polyethylene and teflon to name a few...
What did the author mean by saying “People often say there is a special chemistry between a father and a son” in the fourth paragraph? A. Mind acts upon mind. B. Like father like son. C. A child is better unborn than untaught. D. Obedience is the first duty of a boy. 相关...