Which of the substances listed here represent a...

Which of the substances listed here represent a heterogeneous mixture? Choose all that apply.
$\begin{array}{ll}{\text { (A) the air in your classroom }} & {\text { (B) beef stew }} \\ {\text { (C) mouthwash }} & {\text { (D) chocolate pudding }}\end{array}$

Key Concepts

Homogeneous Mixture

A homogeneous mixture is uniformly distributed throughout so that its composition appears consistent, even under magnification. The individual components are integrated at the molecular level, which means they are not visibly distinguishable.

Mixtures

A mixture is a physical combination of two or more substances where each retains its individual properties. In mixtures, the components can be separated by physical methods, and they are not chemically bonded to each other.

Heterogeneous Mixture

A heterogeneous mixture is one with non-uniform composition where the different components or phases can be seen and separated physically. In these mixtures, the distinct substances do not blend completely, leading to noticeable variations in composition.

Transcript

00:01 In problem 8, which of the substances represents the heterogeneous mixture? so we have given option for this.

00:09 So first is the air in your classroom.

00:19 Then option b is beef stew.

00:25 Option c is mouth wash and option d is chocolate pudding.

00:39 So in order to answer this question, so first we understand what is home.

00:45 Homogeneous or heterogeneous mixture.

00:48 So a solution is considered homogeneous.

00:55 A solution is considered a homogeneous mixture because of its uniform nature because of its uniform nature.

01:13 Because of its uniformity, that means mixture is a mixture is uniformity.

01:24 Uniform mixture is uniform throughout throughout in the solution.

01:40 And mixture that are not uniform throughout and the mixture that are not uniform are not uniform that are not uniform throughout are called heterogeneous are called heterogeneous solutions heterogeneous mixtures so that is called the heterogeneous mixtures okay so on this way on the basis of this homogeneous and heterogeneous we can say that this air in your classroom is so basically the air option a is air in your classroom is homogeneous, is homogenous, then second, then we can see the other option, that is the option c first.

03:07 So it is a homogeneous and mouthwash, mouthwash, it is again homogeneous, then chocolate pudding option d, it is again home.

03:31 Homogeneous mixture because there are other substances other substances in putting but you cannot other substances in the pudding but you cannot other substances in the pudding but we can not see or pull them out of the pudding we cannot see or pull them out of the pudding.

04:24 So we can see that chocolate pudding is the homogeneous...

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