Final answer:
Hair gel is primarily in a liquid state of matter but is actually a colloid, which is a mixture where microscopic particles are dispersed in another substance, giving it a gel-like consistency.
Step-by-step explanation:
Hair gel is primarily in the liquid state of matter. It contains a mixture of chemical compounds suspended in a liquid base. States of matter are typically categorized as solid, liquid, gas, or plasma. Hair gel is not hard or rigid like a solid, and it's not diffused and freely moving like a gas or plasma. Instead, it spreads out to fill the shape of its container - a property characteristic of liquids. However, it's interesting to note that hair gel is actually a kind of colloid, which is mixtures where microscopic particles are dispersed in another substance. In this case, the colloidal particles are responsible for the gel-like consistency.
Learn more about States of Matter