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========== This may come as a bit of a shock to you,
but I'm not super into personal grooming. Like I understand soap and shampoo. But there's all this other stuff now, and
I keep seeing references to pH balance everywhere. pH balanced soaps, and shampoos, and deodorant,
and makeup abound in supermarkets and drugstores. And I've even seen pH balanced water?! We've talked a lot about balance over the
last couple of weeks, and pH balance is related to the equilibrium
state of a reversible reaction. You're probably also familiar with the pH scale, and you know that it has to do with acids and bases. But what is pH exactly? And why is it weirdly written with a lowercase
'p' and a capital 'H'? And also, what about pH's alter ego p...