The empirical formula of a molecule is the elemental composition whose subscripts (indicating number of atoms contained in the molecule) are the smallest positive integers that still describe the correct ratios of atoms. For example, HO is the empirical for...
Answer to: Determine the empirical formula of a molecule that is 18.02% carbon, 2.02% hydrogen, and 79.9% bromine. By signing up, you'll get...
If a compound is molecular, the molecular formula is preferred to the empirical formula since it gives more information. A molecule of glucose, for example, consists of 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms. Its molecular formula, C6H12O6, displays this information explicitly; ...
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,...
(Chemistry) a chemical formula showing the composition and structure of a molecule. The atoms are represented by symbols and the structure is indicated by showing the relative positions of the atoms in space and the bonds between them:H–C≡C–H is the structural formula of acetylene. See als...
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a non-essential human nutrient that is classified as a non-provitamin A carotenoid pigment since it lacks a terminal beta ionone ring and does not mediate vitamin A activity. However lycophene is a potent antioxidant molecule that scavenges reactive oxygen species (ROS) singlet oxygen. Tomato ...
Agents that modify interfacial tension of water; usually substances that have one lipophilic and one hydrophilic group in the molecule; includes soaps, detergents, emulsifiers, dispersing and wetting agents, and several groups of antiseptics. (See all compounds classified as Surface-Active Agents.)|Su...
Cyanide is a molecule that consists of one carbon atom triple-bonded to one nitrogen atom. The chemical formula for cyanide is CN–. It is most famous for its potential as a deadly poison to humans and other life forms. Even the ancient Egyptians documented what many believe to be cyanide...
What is the molecular formula for butane if it has an empirical formula of C2H5 and each molecule has 10 hydrogen atoms? Empirical Formulas: The empirical formula of a molecule is often different from its molecular formula. The molecular formula ...