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GeneralRe: Somebody mentioned Darwinism... Pin
OriginalGriff19-Jan-21 11:11
mveOriginalGriff19-Jan-21 11:11 
GeneralRe: Somebody mentioned Darwinism... Pin
Daniel Pfeffer19-Jan-21 22:08
professionalDaniel Pfeffer19-Jan-21 22:08 
GeneralRe: Somebody mentioned Darwinism... Pin
Nelek20-Jan-21 0:59
protectorNelek20-Jan-21 0:59 
GeneralRe: Somebody mentioned Darwinism... Pin
Daniel Pfeffer20-Jan-21 1:52
professionalDaniel Pfeffer20-Jan-21 1:52 
GeneralRe: Somebody mentioned Darwinism... Pin
Nelek20-Jan-21 2:12
protectorNelek20-Jan-21 2:12 
GeneralRe: Somebody mentioned Darwinism... Pin
W Balboos, GHB20-Jan-21 2:09
mveW Balboos, GHB20-Jan-21 2:09 
GeneralRe: Somebody mentioned Darwinism... Pin
Nelek20-Jan-21 2:18
protectorNelek20-Jan-21 2:18 
GeneralRe: Somebody mentioned Darwinism... Pin
W Balboos, GHB20-Jan-21 2:41
mveW Balboos, GHB20-Jan-21 2:41 
OK. Any complaints about these lessons is "on you !"

Stomach protects itself - prostaglandin 1 if I recall correctly. Without it, you would slowly digest your own stomach. Many NSAID's (like aspirin, but NOT acetaminophen) have a side effect of suppressing your prostaglandins and that's how chronic use can end up giving you ulcers. It's not the aspirin, an extremely weak acid, that does the damage (at least not directly).

Although it doesn't have to be water, acid strength is typically considered how completely the acid ionizes in water. That is, HCL become H+ and Cl- when in aqueous solution. There is no HCL left. This is facilitated by water being very polar. Water is a bent molecule (CO2 is straight). Because it is bent, the local charges are asymmetric on the molecule even though it's net neutral. Like a magnet, in a way, it has poles (hence "polar"). The O in H2O holds the more negative charge, the H's, the more positive charge. They can thus "solvate" ionic species and stabilize their charge. It is for this same reason that salt (NaCl) dissolves in water and is only in existence as Na+ and Cl-. Solvation is a pretty powerful force as it has to, in the case of salt, break up the the salt crystal lattice. (At this point, it gets more complicated as we would talk about Gibbs vs Helmholtz free Energies and Entropy). Anyway, it's for this same reason oil and water don't mix: the water molecules are attracted to one another rather strongly and will not let the oil molecules intervene. Intermediate substances, such as alcohols are polar. Small molecules, such as methanol, ethanol, and propanol are polar enough where entropy will make the totally miscible with water. The randomization of the molecules overcomes the mutual attraction. Longer chain alcohols are not totally miscible (but are soluble) with water, less and less so as the organic part dominates its properties. Soap . . . a magic substance (look up micelles) ! Note, back to the original topic, if you were to dissolve HCL in something totally non-polar, like hexane, then it would not be ionized.

Other definitions of acid in other contexts:
Bronsted Acid: Based upon the ability of a substance to "donate" or "accept" protons (H+)
Lewis Acid: Based upon the substance's ability to donate or accept electrons
There are other definitions for other contexts - these two are often relevant in Organic chemistry.

Anyway, that's more than enough for now. And then some

"solvate" implies they surround the charged particle (ion) and diffuse it's charge and thus stabilize it.


Ravings en masse^
"The difference between genius and stupidity is that genius has its limits." - Albert Einstein
"If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010

GeneralRe: Somebody mentioned Darwinism... Pin
Nelek20-Jan-21 5:20
protectorNelek20-Jan-21 5:20 
GeneralRe: Somebody mentioned Darwinism... Pin
enhzflep20-Jan-21 20:40
enhzflep20-Jan-21 20:40 
GeneralRe: Somebody mentioned Darwinism... Pin
5teveH19-Jan-21 20:36
5teveH19-Jan-21 20:36 
GeneralRe: Somebody mentioned Darwinism... Pin
Slacker00719-Jan-21 11:19
professionalSlacker00719-Jan-21 11:19 
GeneralRe: Somebody mentioned Darwinism... Pin
Christian Graus19-Jan-21 11:20
mveChristian Graus19-Jan-21 11:20 
GeneralRe: Somebody mentioned Darwinism... Pin
W Balboos, GHB20-Jan-21 2:11
mveW Balboos, GHB20-Jan-21 2:11 
GeneralRe: Somebody mentioned Darwinism... Pin
MKJCP20-Jan-21 2:37
MKJCP20-Jan-21 2:37 
GeneralRe: Somebody mentioned Darwinism... Pin
W Balboos, GHB20-Jan-21 2:45
mveW Balboos, GHB20-Jan-21 2:45 
GeneralRe: Somebody mentioned Darwinism... Pin
MKJCP20-Jan-21 3:07
MKJCP20-Jan-21 3:07 
GeneralRe: Somebody mentioned Darwinism... Pin
W Balboos, GHB20-Jan-21 3:12
mveW Balboos, GHB20-Jan-21 3:12 
GeneralRe: Somebody mentioned Darwinism... Pin
MKJCP20-Jan-21 3:26
MKJCP20-Jan-21 3:26 
GeneralRe: Somebody mentioned Darwinism... Pin
trønderen20-Jan-21 5:33
trønderen20-Jan-21 5:33 
GeneralRe: Somebody mentioned Darwinism... Pin
W Balboos, GHB20-Jan-21 5:41
mveW Balboos, GHB20-Jan-21 5:41 
GeneralRe: Somebody mentioned Darwinism... Pin
MKJCP20-Jan-21 2:35
MKJCP20-Jan-21 2:35 
GeneralRe: Somebody mentioned Darwinism... Pin
20212a19-Jan-21 11:37
20212a19-Jan-21 11:37 
GeneralRe: Somebody mentioned Darwinism... Pin
Mike Hankey19-Jan-21 11:41
professionalMike Hankey19-Jan-21 11:41 
GeneralRe: Somebody mentioned Darwinism... Pin
OriginalGriff19-Jan-21 11:59
mveOriginalGriff19-Jan-21 11:59 

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