A. the other substances B. other substances C. the other substance D. others substance 相关知识点: 试题来源: 解析 B substance作“物质”讲时是可数名词。句意:一种物质如果没有和其他的物质混合,它就是一种纯的物质。根据语境可知,这里的“物质”应该是泛指而不是特指。所以,A、C两个选项都不对。
the other substance D. others substance 相关知识点: 试题来源: 解析 B substance作“物质”讲时是可数名词。句意:一种物质假如没有和其他的物质混合,它确实是一种纯的物质。依照语境可知,那个地点的“物质”应该是泛指而不是特指。因此,A、C两个选项都不对。而D项的表达本身确实是错误的。
unique appearance in Descartes' texts and giving rise to a range of contested interpretations is the phrase substantia pura as it is applied to mens humana in contrast to corpus humanum in the Synopsis: "the human mind is not made up of any accidents in this way, but is a pure substance...
QUESTION 8The heating curve for a pure substance at atmospheric pressure is shown in the graph below.12090 A 0 0 0601300Time(minutes)8.1 Write down the following for this pure substance:8.1.1. Melting point 54C(1)8.1.2. Boiling point 93C(1)8.2. Is this pure substance water? Give a re...
When pure oxygen is condensed, why does it turn into a liquid? Answer and Explanation: The physical state of matter (solid, liquid or gas) depends on intermolecular distance. The intermolecular distance is the result of a balance of... ...
5 A pure solid substance is heated into a liquid from 30 C to 90 C. The substance has a melting point of 60 C. The heating curve of the substance on the temperature-time graph is shown in Fig. 5.1.temperature/℃908070)+X Y6050+40+30time / min Fig. 5.1(a)Describe the differenc...
这结合以加速的“湿outperformance与一部透明影片的组合,做它理想为介入高清晰标记的应用 [translate] a亚洲渔业水产与养殖论坛 Asian fishery aquatic product and cultivation forum [translate] aThe molecule is the smallest particle of a pure substance 分子是一种纯净的物质的最小的颗粒 [translate] ...
What is the difference between a pure substance and a mixture:一种纯物质和混合物的区别是什么a,A,be,Pure,and,pure,what,the,纯物质,What 文档格式: .ppt 文档大小: 218.5K 文档页数: 11页 顶/踩数: 0/0 收藏人数: 0 评论次数: 0 文档热度: ...
It is a pure substance because it is made up of only H2O molecules. - Glucose (C6H12O6): This compound consists of carbon, hydrogen, and oxygen. It is also a pure substance as it is made up of only glucose molecules. - Acetic Acid (CH3COOH): This compound consists of carbon, hydrogen...
Copper is a homogeneous substance as the composition remains uniform throughout the bulk. Generally, all elements and compounds are homogeneous. Is Copper Oxide a Pure Substance? Yes, Copper Oxide is considered a pure substance. Copper oxide is formed when Cu reacts with atmospheric oxygen. It ...