What is the ionic compound formed between oxygen and aluminum? What is the formula for the compound formed by the combination of the Fe3+ and NO3- ions? Which of the following elements would form an acid oxide with the formula XO2 and an acidic comp...
Check which is the most acidic hydrogen in the molecule. Decide the most acidic hydrogen in the given molecule. Which of the following four compounds is the most acidic (i.e., has the lowest pKa value)? How can i know whether solution is acidic or not and then what type of acid?
The question of why hydrogen generated the class properties of acidity was still unanswered (and for that matter, generally ignored) as was the question of why many hydrogen compounds failed to display any acidic properties (e.g., the hydrocarbons). 为什么氢可以产生酸性物质的特性,这个问题仍然没...
Carbon and hydrogen containing compounds can be classified based on the presence of pi bonds and branching. Answer and Explanation: The correct option is c) none of the possibilities mentioned above. Both a and b do not result in the...
pre-cleaning to remove any organic materials is essential (Rogers et al.2005). In addition, hydrogen peroxide is not compatible with some materials such as nylon, neoprene, some sorts of aluminum, some epoxides (Rutala and Weber1996), and a prolonged decontamination process followed by a long...
–Sodium hydrogen carbonate and magnesium hydroxide (milk of magnesia) are examples. Shampoos are adjusted for an ideal pH. Acids keep fruit fresh longer How can you determine by tasting which foods have a high concentration of one or more acidic compounds? What property of detergents makes ...
线索词为教授所说:Phytoliths are very tiny,mineral deposits,almost like pieces of hard glass,that form in the cells or between cells of many kinds of plants.The minerals originate in the ground water that the plant absorbs through its roots.如原文所述,植物岩为沉积在细胞中或细胞间的矿物质,...
As the little boy with his two dark eye circles goes viral, the Chinese animated film “Ne Zha 2: Demon Child Conquers the Sea” has become the biggest blockbuster five years after its prequel was screened. First topping the box of...
Tautomers are molecules that differ in the position of a hydrogen atom. A tautomeric form of thymine has the structure: If this tautomer, rather than the stable form of thymine, were present in a strand of DNA during replication, what would be th...
This is a painting called "Palisades." It shows what once used to live up along the Hudson River, north of New York City.这是一幅名为 《帕利塞兹》 (Palisades)的画。它展示了曾经生活于 纽约市北部哈德逊河沿岸的生物。 I actually built it to help fund a new park in Guatemala. 我当时创作...