Compounds differ from free phrases in the following three aspects: (1) Phonetic features. In compounds the word stress usually occurs on the first element whereas in noun phrases the second element is generally stressed if there is only one stress. (2) Semantic features. Compounds are different...
百度试题 结果1 题目mixture and compounds - what are they and examples of each.相关知识点: 试题来源: 解析 mixture and compounds - what are they and examples of each.混合物和化合物-他们和每个例子是什么.反馈 收藏
百度试题 题目2. What are endocentric and exocentric compounds? Which compounds below are endocentric and which are exocentric?相关知识点: 试题来源: 解析反馈 收藏
What are the main features of the English compounds?相关知识点: 试题来源: 解析 Orthographically a compound can be written as one word, two separate words with or without a hyphen in between. Syntactically, the part of speech of a compound is determined by the last element. Semantically, the...
Organic compounds are the complex compounds of carbon. Because carbon atoms bond to one another easily, the basis of most organic compounds is comprised of carbon chains that vary in length and shape. Hydrogen, nitrogen, and oxygen atoms are the most common atoms that are generally attached to...
Membranes are selectively permeable. What does this mean? If cell membranes WEREN'T selectively permeable to compounds like sugars and amino acids, what would happen to the nutrients that the cell brings in? Briefly describe five functions of membran...
What are precious metal compounds? Compounds: Compounds are very common in everyday life. One of the most important compounds for human life is water. Water consists of two atoms of hydrogen bonded with one atom of oxygen. Some compounds are more valuable and useful than others. ...
There are 2 main types of compounding: compound interest and compound returns. Here's how compound interest and compound returns work—and how you can take advantage. What is compound interest? Compound interest is when interest you earn in a savings account or on certain types of investments ...
Synthesis Method 1: The traditional method mainly uses pentaerythritol (1) and hydrogen bromide as raw materials, acetic acid as a catalyst, and water or tetrafluoroethylene as a solvent to react at 90-120°C. The main products synthesized by this method are the di-substituted and tri-substitu...
Step-by-Step SolutionStep 1: Definition of Aromatic Compounds Aromatic compounds are a class of compounds that are characterized by their cyclic structure, planar geometry, and the presence of delocalized pi el