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OK, 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
Lesson... Six
Left channel
Right channel
Hydrogen, H, +1
Sodium, Na, +1
Magnesium, Mg, +2
Aluminum, Al, +3
Pota**ium, K, +1
Calcium, Ca, +2
Chromium, Cr, +2, three, six
Any physical difficulty with a record, or a turntable, is taken care of
Do you think that Led Zeppelin and Frank Sinatra would go together?
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No
Combinations of music
You're about to play a sole, 45 RPM recording
But the turntable is set at 33 and 1/3
And the record plays very slowly
Let's pick up the tempo a bit, eh?
Now let us imagine you are in the middle of your Disk Jockey program
This is the mark of a professional
Yeah, if you could throw a couple...yeah uhuh..
Right when he's playin' the drum...
Let him play a couple' beats alone
Eeeeuuh
Uh!
Oh I'm sorry, I had the turntable at the wrong speed
Listen!
Scratching - the greatest thing on earth!
What do you do?
What do you do?
Drop!
Chemical change: a change that alters the composition of the molecules of a substance
New substances with new properties are produced
Drop
From now until your next lesson
We want you to study carefully every section of lesson six
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