Cu2++2e-=Cu;(3)a.处于曲线上的点为饱和溶液状态,A点在曲线上方,应为过饱和溶液,故a错误;b.B点为生成晶体的转折点,两种晶体可以共存,故b正确;c.上述流程是在低温下进行的.最终得到的晶体是Cu(NO3)2•6H2O,故c错误;d.由图象可以看出,溶液降温至30℃以下,可以析出Cu(NO3)2•6H2O晶体,故d正确,故...
What does sublimation mean?Consider the change in entropy that occurs when a liquid freezes and explain why the freezing point of a solution is less than that of pure solvent.What is the difference in slope of the chemical potential versus temperature on either side of the normal freezing ...
What does "at equilibrium" mean in terms of (a) the rates of the forward and reverse reactions and (b) the concentrations of the reactants and products? What is the equilibrium constant of the reaction 2NO_2(g) with 3.0 M and N_2O_4 with 2.5M?
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It is important to note that just because the laws of physics are constant, it does not mean that we will get the same experimental results in differing frames. That depends on the nature of the experiment. For example, if we crash two cars into each other, we will find that the ...
某类型沥青混合料配合比设计过程中需进行马歇尔试件制件、试件密度测定、混合料理论最大相对密度测定及车辙等试验项目,请根据相关条件回答下列问题。3).试件密度测定过程中,测得干燥试件的空气中质量为1220.lg,试件的水中质量为719.6g,试件的表干质量为：1221.3g,试件的高度为.1mm。对于此沥青混合料试件,下述...
What does it mean to say that the bonding electrons are shared by the two atoms? Explain how hydrogen bonding gives water its surface tension. Explain in terms of bonding theory why all four hydrogen atoms of allene cannot lie in the same plane. Can CH3CH2CH2CONH2 fo...
What does (aq) mean? « on: November 20, 2009, 10:30:59 AM »Like inBa(s) + 2H2O(l) ---> Ba(OH)2(aq) + H2(g)I realise thats: solidl: liquidg: gasbut aq?---Also, when searching for the solution to one of these equations, what do I search for (in Google)?Just...
What does “SSSS” on a boarding pass stand for? “SSSS” stands forsecondary security screening selection. I’m not sure if the TSA came up with the abbreviation first and then came up with words to justify it, or if it was the other way around. Simply put, an “SSSS” on your bo...
Like my iphone is an Iphone CDMA , does that mean if i put the case on i wont get any signal or calls or text 我由它想知道这是什么意思将没有recive CDMA信号? 象我的iphone是Iphone CDMA,做那个手段,如果我投入案件我不会得到任何信号或电话或者文本[translate]...