The label on a bottle of shampoo lists many ingredients, such as water, sodium laureth sulfate, lauramide dea, sodium chloride, etc. from this information, shampoo is best classified as

Colloids

Explanation:

Colloids are heterogeneous mixtures that have at least two phases, one well-divided phase (solid, gaseous or liquid) called the dispersed phase and the continuous phase called the dispersion medium. These systems have particles generally smaller than 1000 nanometers (1 nanometer = 1 nm = 10⁻⁹m).

Simply by the human eye, colloids may appear to be homogeneous mixtures, but microscopically, their particles do not mix, constituting more than one phase(heterogeneous).

In addition to shampoo, there are other examples of colloids such as gelatin, fog and sour cream.

vanderwaal's forces of attraction are the electrostatic intermolecular forces that exist in a molecule due to the temporary or permanent dipoles that are developed in a molecule. in , the major intermolecular forces are dipole-dipole interactions as the molecule is polar (bent structure). so the vanderwaal's forces of interaction in between molecules are the permanent dipole-dipole interactions that develop due to the dipole that exists in between the polar h - s bond. the positively charged hydrogen atom is attracted towards the negative end of the dipole that is sulfur of the adjacent molecule. therefore, these forces of attraction are relatively stronger than that of london dispersion forces that exist in non polar molecules.

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