Chemistry - August 2006

I'm aware that in "theory" a penny will dissolve in soda. However, I can find no proof of the expierement ever being attempted. Also, I seek to know that if plastics will also dissolve in soda. And, finally is the mixture of the dissolved penny toxic?

2006-08-28 11:19:48 · 11 answers · asked by egthareal 2

2006-08-28 11:17:36 · 13 answers · asked by Anonymous

2006-08-28 10:59:25 · 5 answers · asked by Smartie 1

As part of a process I must heat an oil above its smoke point. How do I prevent the oxidation of the oil while it is still hot?

2006-08-28 10:13:50 · 8 answers · asked by zymer5 1

2006-08-28 09:42:44 · 21 answers · asked by Anonymous

2006-08-28 09:40:27 · 9 answers · asked by dejavus 2

2006-08-28 09:35:35 · 4 answers · asked by Anonymous

2006-08-28 09:29:52 · 5 answers · asked by Anonymous

And, what defines a narcotic? What are its parameters?

2006-08-28 09:11:37 · 12 answers · asked by Anonymous

We all know that when a mint or menthos touches coke (allegedly it must be diet) tremendous pressure if created. Can anyone explain what chemicals cause this? And why does it have to be diet coke?

2006-08-28 08:48:58 · 7 answers · asked by JetAlone 2

2006-08-28 08:43:31 · 3 answers · asked by enigmahaqer78 1

I've put a cupfull of 5% sodium hypochlorite bleach in to 220 litres of greywater which I intend to use for watering my garden. It was starting to smell & grow some strange white mucusy substance (bacteria?) because it has been stagnating in a covered water butt outside for several weeks!! (the drought never materialized).
I want to know very roughly how long I should wait before it is safe to use it to water plants - not that I'll ever need to, it's ended up being the wettest summer I can remember.
a day, a week, a month?

2006-08-28 08:26:35 · 5 answers · asked by Quasimojo 3

2006-08-28 08:12:53 · 13 answers · asked by Kevin H. 3

2006-08-28 07:59:23 · 2 answers · asked by jose r 1

We all know DNA and RNA are self replicating molecules that encode genetic information in the sequence of bases. Hence their status as the "basic molecules of life".

So, what other (synthetic) self-replicating molecules exist that would be capable of encoding a specific sequence of momomeric units? Have any ever been synthesised?

Could any be the basis of life on planets with a different chemistry, or are aliens all going to be (boringly) based on nucleic acids?

2006-08-28 07:43:51 · 10 answers · asked by Anonymous

2006-08-28 07:23:43 · 9 answers · asked by Anonymous

2006-08-28 07:12:47 · 12 answers · asked by Anonymous

2006-08-28 06:54:45 · 4 answers · asked by desdemona 1

2006-08-28 06:05:31 · 4 answers · asked by chirag_annemare 1

A 46.2-ml, .568 M calcium nitrate solution is mixed with 80.5 ml of 1.396 M calcium nitrate[Ca(NO3)2] solution. calculate the concentration of the final solution.

can someone explain me the steps to this problem. i would greatly appreciate it.

2006-08-28 05:57:43 · 2 answers · asked by Paul C 1

2006-08-28 05:38:28 · 2 answers · asked by Anonymous

2006-08-28 05:16:05 · 6 answers · asked by Anonymous

its a topic in chemistry

2006-08-28 05:13:41 · 2 answers · asked by Harry Potter 1

and go back 2 its normal color if using a visual indicator

2006-08-28 04:41:28 · 14 answers · asked by Anonymous

Hi. I am currently doing an assignment on vitamins. I appreciate a lot if anyone out there with a good knowledge of biochemistry can give me a definition of vitamins.
Thanks in advance (and do give your suggestion whether to put biochemistry questions in chemistry or biology).

2006-08-28 04:34:26 · 5 answers · asked by Who_am_i 1

pH of garden soil = pH 6
pH of peat moss = pH 4

How much greater is the concentration of hydrogen ions in the peat moss than in the garden soil????

2006-08-28 04:25:22 · 5 answers · asked by Anonymous

2006-08-28 04:22:19 · 11 answers · asked by Anonymous

can u plz xplain me---
what are bio-chemical cells, how they work , significance......
plz i really need this answer...
thanxxxxxxxx.

2006-08-28 04:20:51 · 3 answers · asked by Anonymous

2006-08-28 04:15:40 · 3 answers · asked by n12aveen 1

what is this?

2006-08-28 04:08:37 · 5 answers · asked by Anonymous