Lewis Acid/Base: Some metal cations and electrophiles can function as Lewis acids. Similarly, some nucleophiles and ligands can function as Lewis bases. Answer and Explanation: (a) CO{eq}_2 {/eq} It is a Lewis acid be...
Based on the Lewis theory of acids and bases, any species that can accept a pair of electrons can act as an acid and any species that can donate a pair of electrons can act as a base. We should expect that many solutions contain species that fall into one of these categories or both...
If the substance is an element, ion, acid, base, or ionic compound, it will determine "n". How is equivalent weight calculated? Equivalent Weight is calculated by taking the molar mass divided by n number of equivalents. The molar mass is the molecular weight. The n number of equivalents...
Carbonic acid is a neutral molecule. However, carbonic acid is unstable and often dissociates into a proton (which is donated to a base) and bicarbonate, which has a charge of -1. Loss of the other proton yields carbonate, which has a charge of -2....
During this time, the winemaker samples the fermenting must and measures the pH or acid levels and sugar content to determine that the fermentation process is proceeding as it should. To make a dry wine, the winemaker will allow the yeast to transform all of the sugar into alcohol. When ...
Lewis Structures: Lewis structures are pictoral diagrams of molecules used to demonstrate the arrangement of covalent bonds between atoms. They are determined by trying to satisfy the octet of each atom whilst ensuring that the total number of valence electrons in the molecule overall stays constant...
To enforce the act, the EPA tests pesticides and antimicrobials to determine tolerances, aggregate risks and cumulative exposure. Asbestos Program. Asbestos is a fibrous material used in some insulation and fireproofing. When the fibers become airborne and are inhaled, they can cause serious health ...
结果1 题目 50. In the Lewis structure for formic acid, HCOOH, how many bonding pairs and lone pairs of electrons are present? D(A) 4 bonding, 2 lone(B) 4 bonding, 5 lone(C) 5 bonding, 0 lone(D) 5 bonding, 4 lone 相关知识点: 试题来源: 解析 D 反馈 收藏 ...
By contrast, DNA becomes more resistant to denaturation when positively supercoiled (wound to >10.5 base pairs per turn). Superfamily 2 helicase A member of a diverse group of ATP-dependent nucleic acid helicases and translocases that share a conserved domain architecture. Many members of this ...
Tried, tested, and trusted, lead-acid batteries have been with us since the middle of the 19th century. With an overall rating of 12 volts, they have six separate cells, each producing 2 volts. Crudely reduced to its basic components, each cell has a "spongy" lead metal electrode (negati...