Which of the following organic compounds functions in the building of bone and muscle? a. nucleic acids b. lipids c. proteins d. carbohydrates Muscular System Muscular system is described to be the system that comprises several muscles fibr...
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...
Which of the following is not an ion? A) Ca B) Na+ C) Cl- D) S2- Which of the following elements is not one of the four most common elements in living matter? a. carbon b. hydrogen c. nitrogen d. oxygen e. phosphorous What is the name given to ...
但是要英语好的哦.In which of the following compounds does the compund contain both ionic and covalent bonds?A)potassium sulphideB)sodium hydroxideC)calcium oxideD)magnesium chloride 英语作业帮用户2017-10-18 举报 用这款APP,检查作业高效又准确!扫二维码下载作业帮 拍照搜题,秒出答案,一键查看所有搜题...
Which of the following statements is not true about covalent compounds ? View Solution Which of the following statements is not true about covalent compounds ? View Solution View Solution View Solution View Solution Exams IIT JEE NEET UP Board ...
Which of the following will not form Grignard reagent with Mg/dry ether? ACH2∣Br−C∣BrH2 B C DSubmit Which of the following compounds is not suitable solvent for Grignard reagent? A B C DSubmit Grignard reaction. View Solution Grignard reaction. View Solution Write short notes on ...
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To separate salt and water in the desalination process, which of the following must occur? A) The ionic bonds between the hydrogen atoms in one water molecule and the oxygen atom in another water molecule break. B) The covalent bonds between the h...
It is the number of covalent bonds formed by the atom of the element with other atoms. maximum covalency isequal to the number of valence electrons. For example, Be contains 2 valence electrons (2 s electrons). Its maximum covalency is 2. ...
(b) Iron is a transition element.(i) Which two of the following statements about iron are correct?Tick two boxes. A freshly-cut surface of iron is green in colour.Iron exists in only one oxidation state in its compounds.Iron has a high density.Iron has a giant covalent structure.Iron ...