a其实他并不在乎我,自己能感觉的到,可是总想追逐点什么,到头来不过是一场空而已。 Actually he does not care about me, own can feel, but always wants to pursue any, is in the end one spatial.[translate] aWhen I first met you 正在翻译,请等待...[translate] ...
Everything is placed in a container,covered with water and brought to a boil.It is mixed for about two hours with some common chemicals and then allowed to cool.Then it is left until most of the water dries up.The substance left,called pulp(纸浆),can be stored unti...
aThis kind of thing makes one`s blood boil,whereas-on the whole-the plight of the human beings does not.I am not commenting,merely pointing to a fact.People with brown skins are next door to invisible.Anyone can be sorry for the donkey with its galled back,but it is generally owing ...
When a substance goes through sublimation or deposition, does it pass through the liquid phase or does it jump directly from gas to solid/solid to gas? Which state of matter is easily compressible. Explain. (a) Solid (b) Liquid (c) Gas (d) Plasma ...
So we can draw a conclusion (5)___ iron does not rust in dry air. The second step is to half-fill a test tube with water and boil the water for three minutes (6)___(make) sure that there is no air in the water. Leave the tube for one week and you(7)___(find) the nail...
The dissolution of one substance in another is possible only when there is an interaction between the molecules of the two substances. Likewise, some gases, e.g., O2, CO2, N2, NH3, and SO2,get dissolved in water because there exists some attractive interaction between the water molecules and...
1 tbsp flax seed substitute (simply mix 2 1/2 oz of ground flax seeds into 8 fl oz water. Bring to a boil and simmer for a few minutes. Cool, then place in a refrigerator). *Be aware that some baking powders may contain egg ingredients. ...
What temperature does alcohol distill at? The first distillation in the wash stills takes approximately 4 to 7 hours. The wash still has a temperature ofapproximately 173°F (78°C), the evaporation point of ethanol. The whole heat input is used for the evaporation of the alcohol. The disti...
A. Where does “smog” come from? B. Soot and ash can be removed in a scientific way. C. And the coal fires continued to bum throughout the weekend. D. A large cold air mass moved into the valley of the Thames River. E. The factories added their smoke and chemical gas to the ...
Answer to: When carrying out simple distillation, how do you know that a given liquid substance has attained its boiling point under the conditions...