Interpretation:
The phases of an aerosol spray need to be identified.
Concept Introduction:
Colloid: A colloid is a heterogeneous mixture containing two phases where one phase is dispersed in another phase. By changing the nature of the dispersed phase and dispersion medium, a various number of colloids were reported.
Answer to Problem 61A
An aerosol spray is a colloid where the dispersed phase is liquid and the dispersion medium is gas.
Explanation of Solution
A colloid is a heterogeneous mixture containing two phases where one phase is dispersed in another phase. An aerosol is formed when a liquid is dispersed in gas. So, the dispersed phase is gas and the dispersion medium is liquid. Fog and mist are also examples of this class.
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