December 2nd, 2014, 01:34 PM  #1 
Senior Member Joined: Jul 2014 From: Norway Posts: 140 Thanks: 3 Math Focus: geometry  Which is soluble in water?
NaCl. Or CO2

December 2nd, 2014, 03:06 PM  #2 
Math Team Joined: May 2013 From: The Astral plane Posts: 2,138 Thanks: 872 Math Focus: Wibbly wobbly timeywimey stuff.  Take a look at the kind of bonding. NaCl bonds ionically whereas $\displaystyle CO_2$ bonds covalently. Generally ionic materials dissolve in water, whereas covalent bonds do not. Remark: You can "dissolve" $\displaystyle CO_2$ in water in the sense that it forms carbonic acid. This is what you find in carbonated drinks like soda. Dan 
December 3rd, 2014, 01:58 AM  #3 
Senior Member Joined: Apr 2014 From: Glasgow Posts: 2,150 Thanks: 730 Math Focus: Physics, mathematical modelling, numerical and computational solutions 
Remember the electrolyte question you asked before? 

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