what is foam ? give exs
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Foam is a colloidal system in which the particles are gas bubbles and the medium is a liquid. The term also is applied to material in a lightweight cellular spongy or rigid form. Ex:Butter.
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Foam is a colloidal system in which the particles are gas bubbles and the medium is a liquid. The term also is applied to material in a lightweight cellular spongy or rigid form.
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