百度试题 题目Hydrochloric acid A.is an enzymeB.creates the acid condition within the stomachC.is found in the intestinal tractD.all of these相关知识点: 试题来源: 解析 B
The article discusses the supply shortfall of hydrochloric acid (HCl) in the U.S. as of February 2012. It examines the situation in fall 2011 where HCl consumers were looking for additional vendors of the acid to keep operations going. It describes the experience of Detrex Chemicals where ...
apoured into A. The contents of B are returned to the sep funnel, along with[translate] apoured down the drain. The benzene layer is poured into A. The sep funnel[translate] athis purpose, some hydrochloric acid is needed. Hardware stores usually[translate]...
in terms of hydrochloric acid, per gram of the copolymer. This latex is dip-formed to give a dip-formed article having no fear of development of a protein allergy, and exhibiting a soft feeling and a high mechanical strength. <IMAGE> 展开 ...
is a covalent pound which exists as molecules. When hydrogen chloride is dissolved in water hydrogen chloride is ionized to give hydrogen ion and chloride ion. However the solution is known as hydrochloric acid but not hydrogen chloride. HCl(g) + aq → H^+(aq) + Cl^-(aq)
6-Vinylfulvene II has been prepared (a) by the action of hydrochloric acid on 1-hydroxymethyl-spiro-[2,4]-hepta-4,6-diene (I), (b) by condensation of cyclopentadiene with acroleine at 15° C using sodium ethylate as base. M Neuenschwander,D Meuche,H Schaltegger - 《Helvetica Chimica...
I used this opportunity to stop at the lakes at the South of Cody and walked to theshore of one of them and poured some hydrochloric acid solution on the “salts” and just as I suspected the “salt” bubbled and hissed. Cody is built on a giant kimberlite formation. After reviewing ...
Hydrochloric acid {eq}\rm (HCl) {/eq} has a {eq}\rm pK_a = -3 {/eq}. Is it a strong acid or a weak acid? Why? What is the pH of a {eq}\rm 10^{-2}\ M {/eq} solution of {eq}\rm HCl {/eq}? pH: pH determin...
It is used for making hydrochloric acid from salt via the Mannheim process. Much H2SO4 is used in petroleum refining, for example as a catalyst for the reaction of isobutane with isobutylene to give isooctane, a compound that raises the octane rating of gasoline (petrol). Sulfuric acid is ...
原题:300 ml of 8 M Hydrochloric acid is placed in a beaker.The chemist determines that this concentration is too great for the experiment and decides to dilute this acid solution with 1,200 ml of water.What is the final concentration of the hydrochloric acid now?(Recall:M1V1=M2V2) 经过...