A. Sodium chloride B. Magnesium oxide C. Water D. Potassium nitrate 相关知识点: 试题来源: 解析 C。解析:在化学中,水(water)是共价化合物(covalent compound)。共价化合物是由原子间通过共用电子对形成的化合物。氯化钠(sodium chloride)、氧化镁(magnesium oxide)和硝酸钾(potassium nitrate)都是离子化合物...
Which one of the following represents a nonpolar covalent bond? a. F-F b. C-N c. H-C d. S-O Between H2O and CH4, identify which compound has polar covalent bonds and which has nonpolar covalent bonds. Which is a nonpolar molecule with a polar...
What are the properties of a covalent compound? Which of the following compounds contains a polar covalent bond? A) NaF B) HCl C) MgO D) O_2 Define covalent bond, ionic bond, and compounds. Which one of the following represents a nonpolar covalent bond?...
In chemistry, substances can either be pure or a mixture. Pure substances and mixtures are further classified into element or compound and homogenous mixture or heterogeneous mixture. Answer and Explanation: Mixtures are formed by the combination of more...
The disulfide compound which is displayed with formula C by covalent binding (the inside n of type C is integer 1 - 20 on the metalPROBLEM TO BE SOLVED: To provide a photoenergy transferable element obtained by forming a self- organized monomolecular film composed of a mixture of an energy ...
Answer and Explanation: The carbonate ion (CO32−) has three resonance structures that can be drawn. Each resonance structure represents a different...Become a member and unlock all Study Answers Try it risk-free for 30 days Try it risk-free A...
Data represents mean and standard error of mean of three independent experiments. Data in (a and b) were analyzed by one-way ANOVA at each time point; *p < 0.05. Full size image Comparative proteome profiling of KPC-KP cells Comparative proteomic analysis was carried out between non-...
The strength or binding affinity of immunological binding interactions can be expressed in terms of the dissociation constant (Kd) of the interaction, wherein a smaller Kd represents a greater affinity. Binding properties of selected polypeptides can be quantified using methods well known in the art...
The invention relates to a medicament which comprises a peptide extract of avocado and which can also comprise a composition containing D-mannoheptulose an/or perseitol, such as a water-soluble extract of avocado sugars, and/or a peptide extract of lupine. The inventive medicament is intended ...
1. A method, comprising: providing a substrate over which is located a layer of polymer resist, wherein the polymer resist contains thermally reversible crosslinkages; and scanning a surface of the polymer resist layer with an AFM probe positioned in contact with the resist layer, to produce...