Hello, everybody.
I'm Josh Clark, and
this is BrainStuff.
I've got a great one for you.
You know when you
have a question,
and then the answer just makes
utter and complete sense?
There's an elegant
solution to it?
That's what's about
to happen with you.
You know Alka-Seltzer.
You have a hangover.
Your stomach's upset.
You need it for whatever.
It's pretty much a
general cure-all.
So you plop a couple
of Alka-Seltzer tablets
into some water.
It starts to foam.
You down it.
You feel a lot better.
It's kind of like
spinach, you know?
You ever wondered,
right before you
took that glug, why the
Alka-Seltzer is fizzy?
See, an Alka-Seltzer
tablet is a powdered form
of sodium bicarbonate--
baking soda--
and citric acid-- citric acid.
When they're in the
solid form, they're
suspended away from one another.
They're not mixed together yet.
They're not reactive.
But when you drop that
solid tablet into water,
it catalyzes a chain
reaction between the two.
Hence the fizzing.
The citric acid and the sodium
bicarbonate, the baking soda,
are mixing with one another,
creating a fizzy sensation.
It's pretty much the same
thing when you add baking soda
and vinegar into a
papier-mache volcano
and everything spills out.
Virtually the same thing.
But that's all there is to it.
Not magic, not witchcraft.
It's science.
If you like this video,
there's plenty more
where that came from.
And if you have a
question, you can leave it
in the comments
section below here.
Maybe we'll do a
BrainStuff based on it.
And at the very least,
you should like us,
subscribe to this channel,
just get into BrainStuff.
