In chemical terms, instant coffee is defined as a mixture since it contains many different molecules as coffee is a plant that uses millions of different molecules. A substance is usually taken to mean a compound in chemistry.
It is a mixture. It contains many compounds.
water is an element, instant coffee powder is a mixture, combined it is still a mixture.
Coffee is a mixture
mixture
Coffee is a mixture
Coffee is a heterogeneous mixture. Its main composites are water and refined coffee beans which can be mechanically separated.
Coffee is a mixture.
It is a homogeneous mixture.
Homogeneous
Homogeneous
Only soluble (instant) coffee can form o homogeneous solution.
Only a coffee made with instant coffee is a homogeneous solution.