There're hundreds of chemical compounds (化合物) in plants. We tested which attracted the cats. The result suggests that cats respond not only to neptalactone, the cat-attracting compound in catnip, but also to nine other chemical compounds, and the joyful response only happens when they smell...
百度试题 结果1 题目We can separate oil into the chemical compounds___it is composed. A. of which B. with which C. in which D. from which 相关知识点: 试题来源: 解析 A 反馈 收藏
Chemical compounds which are useful, in particular, as agents for uterine rinse, and preparation.Chemical compounds having a substituted oxepane ring and methods of preparing such compounds are described. The compounds are active as utero-evacuant agents....
Which of the following organic compounds are used to manufacture steroid hormones in the body? A. Polysaccharides B. Glucose C. Cholesterol D. Protein Hormones: Hormones are the chemical messengers in the body that are produced, stored,...
Re: Which of these compounds has the least ionic character? «Reply #2 on:September 11, 2006, 05:44:48 AM » I agree with Yggdrasil: I would look at the electronegativity and answer bismuth sulphide. Logged Print Pages: [1]Go Up ...
【题文】 Carbon is a chemical element which is present in organic compounds that make us organisms, plants as well as fossil. It is a vital component of the greenhouse gas CO2, the highest percentage of the global warming gas in the atmosphere. These Green House Gases (GIIGs) along with...
【题目】DCarbon is a chemical element which is present in organic compounds that make us organisms, plants as well as fossil.It is a vital component of the greenhouse gas CO2, the highest percentage of the global warming gas in the atmosphere.T hese Green House Gases (GIIGs) along with ...
英译汉The systematic naming of compounds, which is called chemical nomenclature, follows a set of rules, so that the name of each compound need not be memorized, only the rules.The names of monatomic cations (pronounced “cat-ions”) are the same as the name of the element, with the add...
Nucleotides are organic molecules that are the monomers of nucleic acids like RNA molecules. Nucleotides may bind together through phosphodiester bonds and all consist of three basic parts.Answer and Explanation: All of the following are components o...
A chemical bond is a lasting attraction between two or more atoms that allows for the formation of chemical compounds. An example is covalent bonding, where valence electrons are shared between two or more atoms. Electronegativity is the tendency of an atom in such a bond...