Now that you are ready for your second lesson,
let us look back and see what were the most important things you have learned from your first lesson.
Welcome to
How
Our
Records
Presents...
Chalk
Chemistry!
This is what to do!
Hold it a minute, folks!
Ladies and gentlemen, this is a test.
Bullshit!
okay let's begin compound a substance
composed of two or more elements
chemically combined in definite proportions
by weight mixture two or
more substances that are not chemically
united such as air solution a uniform
mixture of varying proportions of
a solvent and a solute
For many of our students,
this is the lesson you've been waiting for.
Left chin.
Touch.
Left chin.
Right chin.
Hydrogen,
H, plus 1,
Sodium,
Na, plus 1,
Magnesium,
Mg, plus 2,
Aluminum,
Al, plus 3,
Potassium,
K, plus 1,
Calcium,
Ca, plus 2,
Chromium,
Cr, plus 2, 3, 6.
I'll video, peace
out.
Do you think that
Led
Zeppelin and
Frank
Sinatra would go together?
No.
Combinations of music.
You're about to play a
Soul 45
RPM recording.
But the turntable is set at 33 and a third,
and the record plays very slowly.
Now let us imagine that you're in the middle
of your disc jockey program.
This is the mark of a profession
al.
Yeah if you could throw a couple, yeah,
right when he's playing the drum, let him play a
couple of beats alone.
Oh, I'm sorry, I had the turntable at
the wrong speed.
Give me some more.
Listen.
Scratch it!
The greatest thing on earth!
What do you do?
What do you do?
Chemical change, a change that alters the
composition of the mo lecules of a substance.
New substances with new properties
are produced.
So good.
So easy.
No fuss, no fuss, no bother.
Good to the last drop.
From now until your next lesson,
we want you to study carefully every section of
Lesson 6,
and to go back over
Lesson 4.
Practice carefully, and you will be ready for
the new techniques and new situations
we will cover together in
Lesson 5.
Now here's another problem.
You've got to be so quick.
What do you make of 4 times 6?
Turn them around and figure
what is 6 times 4.
You'll learn the solution to both is 24.
Now I want you to multiply 4 times 8.
What is the answer that you
contemplate?
Switching around to a 5 -4,
you'll see it's true
That's the answer you will come to