Cool reaction

  • Thread starter bayan
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  • #1
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cool reaction!!!

Hi there, I am going to have to make a presentation for my English class next month, and since we are allowed to do about anything I was just looking around for some cool ideas and maybe some explination of what happened.

Yes it is for my English work.

I reaction must be resenable as it is not going to be done in a lab. I is going to be done in a normal class room.

I was thinking about reacting something with water to give me some sort of a small explosion (Like fireworks) or something like that which I cannot clearly remember(This was done sometime a go in my grade 9 science).

Any other comment is deeply welcomed.


Thanx
 

Answers and Replies

  • #2
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LOL. A very small bead of potassium or sodium metal done.
Store them in paraffin oil. Only a very small piece. They are very reactive. Be aware of it!
Potassium gives lilac flame while sodium gives golden yellow flame. DO NOT PUT THEM IN ANY ACID INSTEAD.
 
  • #3
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I know this might be asking too much.

but what goes on in the reaction?

2K+H2O--->K2O+2H

Is that right(Assuming it is pure water) or is there missing chemichal?
 
  • #4
Gokul43201
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Close enough, but the oxide gets very easily hydrated, so :
[tex]2K + 2H_2O \longrightarrow 2KOH + H_2 ~[/tex] and this is hardly asking for too much.
 
  • #5
dextercioby
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The reaction with water is higly uninteresting.:yukk:You should try it with sulphuric acid...:devil:

Daniel.

P.S.You may wanna heat the acid,first...:devil:
 
  • #6
mrjeffy321
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dextercioby said:
The reaction with water is higly uninteresting.:yukk:You should try it with sulphuric acid...:devil:

Daniel.

P.S.You may wanna heat the acid,first...:devil:
LOL, and while you at it, why not hod it under the water/acid with your bare hand to keep it submerged.

sounds like dextercioby knows the formula for disaster
 
  • #7
dextercioby
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It doesn't work,the acid will "eat" the Na instantly.I would have advised to keep his face over the Berzelius glass to get a better look at it...Those 1.1 seconds would have remained "fresh" on his face for a long while...:devil:

Daniel.
 
  • #8
chroot
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Please do not encourage students to perform dangerous stunts with chemicals.

bayan,

I strongly recommend that you do not attempt to make any kind of "small explosion" in a classroom. Your English teacher will probably concur.

- Warren
 

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