tHEcONCH Posted September 18, 2007 Report Share Posted September 18, 2007 So, when I mix water I occassionanally add a handful or so of salt at the end to get it right - so why does the salt get hot in my hand when it begins to disolve? Quote Link to comment Share on other sites More sharing options...
Swampy Posted September 18, 2007 Report Share Posted September 18, 2007 the Calcium chloride and magnesium chloride in the salt mix heat up when they come in contact with water. Quote Link to comment Share on other sites More sharing options...
Ira Posted September 18, 2007 Report Share Posted September 18, 2007 Sodium hydroxide does the same. And so does pure sodium. Do a search on Youtube. Quote Link to comment Share on other sites More sharing options...
slappers Posted September 18, 2007 Report Share Posted September 18, 2007 so does hot ice have heaps of fun with that,just got to keep it cold enought Quote Link to comment Share on other sites More sharing options...
Ira Posted September 18, 2007 Report Share Posted September 18, 2007 Hot ice? Quote Link to comment Share on other sites More sharing options...
slappers Posted September 18, 2007 Report Share Posted September 18, 2007 lol just testing Quote Link to comment Share on other sites More sharing options...
Swampy Posted September 18, 2007 Report Share Posted September 18, 2007 lol Quote Link to comment Share on other sites More sharing options...
davidb Posted September 18, 2007 Report Share Posted September 18, 2007 u mean dry Ice? Solid CO2? Quote Link to comment Share on other sites More sharing options...
HaNs Posted September 18, 2007 Report Share Posted September 18, 2007 u mean dry Ice? Solid CO2? Dry ice lumps killed my hand But yeh it feels like a burn HaNs, Your suggestion that you know you wrote about, is an absotue NO-NO. You should have more sense to put this onto the forum. MOD - ALAN Quote Link to comment Share on other sites More sharing options...
Slightly Blue Dalmation Posted September 18, 2007 Report Share Posted September 18, 2007 well technically its because its an exothermic reaction in breaking up the bond between calcium and carbonate so there is an overall release of energy, in this case in the form of heat yea im 3rd year bsc in chem... haha Quote Link to comment Share on other sites More sharing options...
davidb Posted September 18, 2007 Report Share Posted September 18, 2007 did that is first year Chem! Quote Link to comment Share on other sites More sharing options...
HaNs Posted September 18, 2007 Report Share Posted September 18, 2007 HaNs, Your suggestion that you know you wrote about, is an absotue NO-NO. You should have more sense to put this onto the forum. MOD - ALAN Its not illegal So i dont see a problem MEH :roll: Quote Link to comment Share on other sites More sharing options...
tHEcONCH Posted September 18, 2007 Author Report Share Posted September 18, 2007 well technically its because its an exothermic reaction in breaking up the bond between calcium and carbonate so there is an overall release of energy, in this case in the form of heat yea im 3rd year bsc in chem... haha Thanks SBD, that explain it nicely. Quote Link to comment Share on other sites More sharing options...
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