Foams Quiz

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Questions and Answers

What are foams and how are they formed?

Foams are materials formed by trapping pockets of gas in a liquid or solid.

What are soap foams also known as?

Soap foams are also known as suds.

What is the difference between closed-cell foam and open-cell foam?

In closed-cell foam, the gas forms discrete pockets, each completely surrounded by the solid material. In open-cell foam, gas pockets connect to each other.

Provide an example of an open-cell foam and a closed-cell foam.

<p>A bath sponge is an example of an open-cell foam, while a sleeping mat is an example of a closed-cell foam.</p> Signup and view all the answers

How can a dispersed medium of foam be considered a type of colloid?

<p>When the principal scale is small, i.e., for a very fine foam, this dispersed medium can be considered a type of colloid.</p> Signup and view all the answers

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