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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: mehdi71000 on January 10, 2007, 08:42:47 PM

Title: carbon reaction
Post by: mehdi71000 on January 10, 2007, 08:42:47 PM
hi
does any one knows an element or a molecule with 2 or more links that react with carbon in room temperature?
thanks ;D
Title: Re: carbon reaction
Post by: Borek on January 11, 2007, 04:00:11 AM
What's a molecule with a "two links"?
Title: Re: carbon reaction
Post by: mehdi71000 on January 11, 2007, 10:24:56 AM
like oxygen has 2 links carbon has 4 links hydrogen has 1 link .
Title: Re: carbon reaction
Post by: enahs on January 11, 2007, 11:17:32 AM
So you are basically asking that if anything besides hydrogen will bond with carbon, at or around room temperature?

If so:
http://en.wikipedia.org/wiki/Organic_chemistry

Title: Re: carbon reaction
Post by: mehdi71000 on January 11, 2007, 11:40:36 AM
yes
thanks
but i cant find anything on that page
any suggestions?
Title: Re: carbon reaction
Post by: enahs on January 11, 2007, 05:55:30 PM
When you say carbon, do you mean pure carbon as in graphite, or can it be a hydrocarbon such as methane?
Title: Re: carbon reaction
Post by: mehdi71000 on January 11, 2007, 06:40:24 PM
carbon as an element one molecule with 4 empty bonds
thanks
Title: Re: carbon reaction
Post by: enahs on January 11, 2007, 09:23:11 PM
Quote from: mehdi71000 on January 11, 2007, 06:40:24 PM
carbon as an element one molecule with 4 empty bonds
thanks

Carbon does not exist in that form, that is to highly unstable. So your answer would be yes, carbon will react with elemental carbon at room temperature to form the many allotrops of carbon, most likely graphite.

You must realize that while the periodic table is a list of the chemical properties of the elements, most do not exist in that form in nature. A carbon with nothing attached to it is highly reactive. It would react with more carbon or the oxygen in the air.
Title: Re: carbon reaction
Post by: AWK on January 12, 2007, 03:43:43 AM
Check in textbooks, probably F2 reacts with carbon at room temperature
Title: Re: carbon reaction
Post by: mehdi71000 on January 12, 2007, 12:07:57 PM
thanks guys it really helps.  ;D
1 more question.
does fluorine have to use its two bonds to connect to carbon or, can one bond connect to carbon and one to another molecule?
thanks 
Title: Re: carbon reaction
Post by: constant thinker on January 12, 2007, 09:35:59 PM
Flourine has 7 valence electrons. Why would it have "2 bonds?" Think about the octet rule.
Title: Re: carbon reaction
Post by: vhpk on January 14, 2007, 07:08:26 AM
When you put CaC2 into the lake, the fish will die. Why?
Title: Re: carbon reaction
Post by: Borek on January 14, 2007, 08:49:41 AM
You have to show that you have tried.
Title: Re: carbon reaction
Post by: enahs on January 14, 2007, 12:09:04 PM
Quote from: Borek on January 14, 2007, 08:49:41 AM
You have to show that you have tried.

He means show you have tried figuring out the reaction....not actually killing the fish!
Title: Re: carbon reaction
Post by: Borek on January 14, 2007, 01:18:40 PM
Quote from: enahs on January 14, 2007, 12:09:04 PM
not actually killing the fish!

:)
Title: Re: carbon reaction
Post by: vhpk on January 14, 2007, 10:19:47 PM
Quote from: Borek on January 14, 2007, 01:18:40 PM
Quote from: enahs on January 14, 2007, 12:09:04 PM
not actually killing the fish!

:)
Well, my school is located near a small lake, in the experiment to make C2H2 from CaC2, I had some CaC2 left, so I put them into the lake, the next day, when I came to school, I saw the dead fish ;D, that's the truth, and now, I want to know the reason ???
Title: Re: carbon reaction
Post by: Borek on January 15, 2007, 03:30:27 AM
Write reaction equation.
Title: Re: carbon reaction
Post by: vhpk on January 15, 2007, 05:56:29 AM
I know the reaction:
CaC2 + 2H2O--> Ca(OH)2 + C2H2
But I don't understand that whether Ca(OH)2 or C2H2 is the cause of the death ???
Title: Re: carbon reaction
Post by: Borek on January 15, 2007, 06:12:05 AM
Can you further characterise both products?
Title: Re: carbon reaction
Post by: vhpk on January 15, 2007, 11:46:15 PM
Ca(OH)2 is a base, C2H2 is an alkyl.
Do you mean that Ca(OH)2 cause alkali environment so that the creatures die
Title: Re: carbon reaction
Post by: AWK on January 16, 2007, 02:26:03 AM
Quote from: vhpk on January 15, 2007, 11:46:15 PM
Ca(OH)2 is a base, C2H2 is an alkyl.

C2H2 is an unsaturated hydrocarbon
Title: Re: carbon reaction
Post by: Borek on January 16, 2007, 04:03:10 AM
Quote from: vhpk on January 15, 2007, 11:46:15 PM
Ca(OH)2 is a base, C2H2 is an alkyl.
Do you mean that Ca(OH)2 cause alkali environment so that the creatures die

Check MSDS (search on the left, or just Google "acetylene MSDS") or at least wikipedia for acetylene toxicology.
Title: Re: carbon reaction
Post by: xiankai on January 16, 2007, 07:30:50 AM
Quote
C2H2 is an alkyl.

did u mean alkyne? the two are somewhat similar in spelling
Title: Re: carbon reaction
Post by: vhpk on January 16, 2007, 08:32:10 PM
Quote from: xiankai on January 16, 2007, 07:30:50 AM
Quote
C2H2 is an alkyl.

did u mean alkyne? the two are somewhat similar in spelling
I mean that unsaturated hydrocarbon, so I looked up but I still found the wrong word ;D, sorry