Recent content by Fly_High

Thanks jim. :)

Quicklime is used to dry gases.It is also basic in nature. It cannot be used to dry acidic gases such as sulphur dioxide and carbon dioxide. Why is this so? Is it because alkali (quicklime) will react with the acidic gases to form salt and water? Please help. Thanks. :smile:

In order to prepare an insoluble salt, there must only be a solid present right? The rest must be soluble and in aqueous state right?

The Hell is in Norway, doesn't that mean that when one is in Taiwan (when he's still alive) and when he's dead, he will proceed all the way to Norway? That's so far... And, why the Hell is only in Norway?...:rolleyes: ...

Not sure whether these books suit you though...Have a look at it.. 1) http://www.science-books.net/electro.htm 2) https://www.amazon.com/s?ie=UTF8&keywords=Electromagnetics&tag=pfamazon01-20

Check these sites out: 1) http://www.hennasupply.com/ (There are lots of information in here.) 2) http://lexicorient.com/e.o/henna.htm =)

Why does yawning seem to be contagious?

You can make Ethyl Alcohol simply by fermenting corn, p otatoes, sugar cane, barley & hopps, grapes, etc and then distilling the alcoho l and purifying it.

You are writing an essay on Henna, right? Well then, maybe you can write about the uses of Henna, how it's cultivated etc. The research question can write as 'Henna' and then you will write all the information about Henna.

Why the mercury in glass-laboratory thermometer doesn't stick to glass?

huh...?

I guess the reason that (negative) electrons will not stick to the (positive) nucleus is because between the nucleus and the electrons, there actually exists a strong 'force' that prevents the electrons from sticking to the nucleus. Another reason will be that elecrons orbit around the nucleus...

I heard people say that we one have sore throat, he/she should avoid drinking orange juice. Why is that so? Is it because orange juice is more 'sour' or is it because of the chemicals inside the orange? And, when one have sore throat, besides drinking water, what are the other so-called...

Homework Statement Expand (1-6x)^4 (1+2x)^7 in ascending powers of x up to and including the terms in x^3 Homework Equations (1-6x)^4 (1+2x)^7 The Attempt at a Solution Firstly, I expand (1-6x)^4 = (1)^4 + 4C1 (-6x) + 4C2 (-6x)^2 + 4C3 (-6x)^3 + ...

Thanks all for your help. I have already looked through my textbooks and have understood them.