百度试题 结果1 题目Identify the chemical symbol for carbon.相关知识点: 试题来源: 解析 C 碳的英文名称为Carbon,根据国际化学元素命名规则,其化学符号通常取英文名称的第一个字母(大写),因此碳的化学符号为C。反馈 收藏
“C” is the chemical s for carbon.相关知识点: 试题来源: 解析 symbol 题目中的句子需要补全以s开头的单词,正确的术语是“chemical symbol”(化学符号)。碳的化学符号是C,因此空格处应填写“symbol”。题目完整且无预设答案,因此直接解答。反馈 收藏 ...
Numbers in a formula are used to denote when a molecule contains more than one atom of an element; the numbers are written below the element's symbol. For example, CO2 is the formula for carbon dioxide. It tells you that each molecule has one carbon atom and two oxygen atoms. Some form...
chemical symbol[′kem·i·kəl ′sim·bəl] (chemistry) A notation for one of the chemical elements, consisting of letters; for example Ne, O, C, and Na represent neon, oxygen, carbon, and sodium. McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by...
Which chemical element has the symbol F? What is the element symbol for cobalt? What is the chemical element cobalt? Which symbol represents an isotope of carbon? What chemical element is W? What is the symbol for iodine? What is the chemical element antimony?
two elements, such as CO(carbon monoxide). Then go over all of the formulas that have three elements, such as HCN and so on. When you've finished all six formulas, which should cover most DNA chains, come back and tell us how you did. Keep an eye out for optical illusions as well...
If you wait for another 5730 years, about 25% of the container will be composed of the original carbon, and the other 75% will be atoms of nitrogen. Some elements, especially the heavier ones, have half lives of just a few milliseconds. For example, ununbium-277 (Uub) has a half-...
Each of the chemical elements is designated by a simple symbol, for example, carbon, C, copper, Cu, chlorine, Cl, sodium, Na. When a compound occurs between elements the compound can be symbolised by a formula indicating the elemental constituents as for common salt, sodium chloride, NaCl....
For l-phenylalanine, no bridging hydrogens are present, heavy atoms 1 through 5 (phenyl ring) and 8 (α carbon) are bonded to one hydrogen atom, while 6 (methylene) and 10 (nitrogen) to two. One hydrogen is shared between atoms 11 and 12 (carboxyl oxygens) Charge /q + 1 Charge ...
CAS Number: 75-73-0 Synonyms/Related: 4-Hydroxy-2-oxo-1,2-dihydro-quinoline-3-carboxylic acid methyl ester BAS 00141403 Carbon tetrafluoride Maybridge3_000887 Tetrafluoromethane, Carbon Tetrafluoride Properties Boiling Point: K °C °F Flammability: Explosive Limits: Lower Explosive Limit: 0% Upper...