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ASVAB Science Videos 21 videos
ASVAB Physical Science 2.3. Melting is the process through which...what?
ASVAB Physical Science 2.4. A substance that consists of two or more things that are physically mixed together is a...what?
ASVAB Physical Science 3.1. Solution A has a pH of 3, while Solution B has a pH of 8. Solution A is what?
ASVAB Physical Science 3.3 173 Views
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Description:
ASVAB Physical Science Drill 3, Problem 3. The starting materials involved in a chemical reaction are called the...what?
Transcript
- 00:00
[ musical flourish ]
- 00:03
And here's your Shmoop du jour, brought to you by baking.
- 00:07
It's a chemical reaction you can stuff your face with.
- 00:10
All right, well, the starting materials involved in a chemical reaction are called the, uh, what?
- 00:14
And here are the potential answers.
Full Transcript
- 00:16
[ mumbles ]
- 00:21
All right, well, chemistry requires precision.
- 00:23
So to be a good chemist, we can't just take
- 00:26
a handful of this and a pinch of that and expect to get the result we want.
- 00:30
And the same thing goes for science lingo.
- 00:33
The words scientists use have precise meanings.
- 00:37
So with that, we can immediately rule out option A - supply
- 00:40
because it lacks that precision. Like, it could be anything.
- 00:43
The word "supply" isn't specific to materials involved in a chemical reaction.
- 00:47
We can also get rid of option C because the word "resultant"
- 00:50
isn't really a word used in chemistry.
- 00:53
But even so, we can tell that it wouldn't be right because
- 00:56
the question is about starting materials, not the result.
- 00:59
All right? All right. Well, D's out, too.
- 01:01
The product is what the chemical reaction produces.
- 01:05
It's what we end up with. The answer we're looking for is B - reactant.
- 01:09
Reactants are the starting materials of a chemical reaction.
- 01:13
Think of bread. Ingredients:
- 01:15
the water, the yeast, the flour, the salt.
- 01:18
Those are the reactants.
- 01:20
And when you put them together and add heat for a while,
- 01:22
the product is just a big fat loaf of yumminess. Yum. Bread.
- 01:28
All right, we just need to be careful not to eat all of our science
- 01:30
in one sitting. Otherwise, well, there could be a bad chemical reaction.
- 01:33
Yeah. Stomach ache. You don't wanna go there.
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