00:03
Hi there.
00:03
In this question, we would like to know which of these combinations that we're given here will result in a heterogeneous mixture.
00:15
Therefore, we need to know what a heterogeneous mixture is so we can determine which pair is going to form one.
00:21
So a heterogeneous mixture is, of course, a mixture.
00:25
So a mixture refers to a combination of two or more substances.
00:34
That's a mixture.
00:40
What makes it heterogeneous is, is when these are not uniformly combined or uniformly mixed.
00:59
Let's say distributed, because i don't want to use the word mixed in my definition of mixture.
01:08
Okay, so a heterogeneous mixture, any combination of two or more substances that are not uniformly distributed.
01:15
What does that mean? well, let's think about an example.
01:18
A tossed salad would be a great example.
01:21
Because in a tossed salad, you see definite areas of lettuce, you see maybe tomatoes, perhaps carrots, et cetera, et cetera, et cetera.
01:36
But you see each of these individual parts.
01:39
It's not just one uniform mixture.
01:45
We might be able to make a toss salad homogeneous by putting them all in a blender and blending it up really well.
01:53
But even then, it probably would not form a true homogeneous mixture.
01:58
A homogeneous mixture is uniform.
02:00
Okay, but we're looking for a heterogeneous.
02:02
Mixture here.
02:03
So let's look at our possible combinations here.
02:06
We have a, b, c, and d.
02:09
In letter a, we have oil, which is non -polar, and water, which is polar...