百度试题 结果1 题目39 Which formul a represents a molecule with the most polar bond? (4)(1)CO(3)HI(2)NO(4)HCl 相关知识点: 试题来源: 解析 (4) 反馈 收藏
19 Which formula represents a polar molecule?A:Cl_2B:HI 相关知识点: 试题来源: 解析 B: HI 该题考查分子极性。分子极性取决于原子电负性差异和分子结构。Cl_2 中两个氯原子电负性相同,分子结构为线性,电荷分布均匀,是非极性分子。HI 中碘原子电负性大于氢原子,导致分子中电荷分布不均匀,形成极性分子。因此,...
Which of the following biological molecules represents a transportable form of energy? A. Protein B. Lipid C. Carbohydrate D. Nucleic acid What is a monomer for starch and glycogen? Which of the following options is correct? All of the following are...
Which of the following structures represents the highest level of structural organization? A)Cell B)Molecule C)Organelle D)Atom Organization Life processes of human body are maintained at several level of structural organization. These include chemical, cel...
<p>To determine which of the given examples represents periodic motion, we first need to understand what periodic motion is. Periodic motion is defined as motion that repeats itself at regular intervals of time. Let's analyze each option step by step.</p
结果1 题目 4 The diagram represents an enzyme and four molecules, A, B, C and D.Which molecule is the substrate of this enzyme?A molecule A molecule B molecule C Senzyme molecule D 相关知识点: 试题来源: 解析 A 反馈 收藏 ...
Which of the following represents a heterogeneous mixture? a. a sports drink b. an unsaturated solution and salt water c. apple pie d. both a and b are correct e. both b and c are correct Which choice gives two raw materials used in the So...
A formula with the lowest whole number ratio of elements in a compound is called Acovalent compound Bchemical formula Cmolecular formula Dempirical formulaSubmit Formula which represents a simple ratio of atoms of different element present in a molecule of the substance is called AMolecular formu...
aThis important small molecule possesses a relatively wide array of biological activities that may underlie its ability to reduce the mortality associated with various cancer types.In particular, several studies have indicated that inhibition of metastasis by genistein represents an important mechanism by ...
Which of the following biological molecules represents a transportable form of energy? A. Protein B. Lipid C. Carbohydrate D. Nucleic acid What are monomers of the organic compounds below? 1. carbohydrates 2. lipids 3. nucleic acids 4. ...