Is water an element or compound? What is the autoionization of water? Which element is found in most of the compounds in your body except for water? What type of compound is not likely to dissolve in water? Is water a chemical compound?
what is the time fram what im getting at is what kind of a fool d what kind of farm doe what kind of fighter what kind of memories what make you so unha what makes you depres what makes you feel g what material what mean feeling what menu what my hometown will what now what one...
v. made (mād), mak·ing, makes v.tr. 1. To cause to exist or happen; bring about; create: made problems for us; making a commotion. 2. To bring into existence by shaping, modifying, or putting together material; construct: make a dress; made a stone wall. 3. To form by asse...
By virtue of the arrangement of the hydrogen atoms around the oxygen, each water molecule carries a polar charge. Its positive end is attracted to the negative ions in an ionic compound, while the negative end is attracted to the positive ions. The propensity for a compound to dissolve in w...
Water is a compound (because it's two different chemical elements joined together), but it's also a molecule because it's made by combining atoms. The way to remember it is like this: compounds are elements joined together and molecules are atoms joined together. Not all molecules are as ...
A silicone compound is made up of a hydrophobic particle dispersed in silicone oil, which produces a foam control used in a great variety of applications.
b.“what”belongstoacompoundrelativepronoun代表…“的”事；话；内容；东西；方向；情况；原因等WhatIhavesaid/dealtwith/covered/described/presented/treated:我所讲述的内容… e.g.●Thisdeviceiswhatweneed.译文:这个设备正是我们所需要的。●Therelativevelocitybetweenthetwoiswhatmakesthe...
分析可知,此处应填名词作主语,结合句意可知,名词guidebook"旅游指南"符合题意,结合空前不定冠词A(n)可知,此处应用其单数形式。故填guidebook。(2)考查可数名词单数。句意:瀑布是指从高处流到低处的水流,通常是从很高的地方流下来。分析可知,此处应填名词作主语,结合句意可知,名词waterfall"瀑布...
In a water solution at neutral pH, PAA is an anionic polymer, i.e. many of the side chains of PAA will lose their protons and acquire a negative charge. This makes PAAs polyelectrolytes, with the ability to absorb and retain water and swell to many times their original volume. Dry ...
-heterogeneousfluid mixtures containing solid particles large enough for sedimentation, which means that the particles (compared with the solute part of a solution) will eventually settle to the bottom of the container (unlike in the case of colloids, below), e.g. particles of sand in water....