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.
Coffee is a mixture
Water and instant coffee would be considered a mixture. A mixture is a combination of two or more substances that are not chemically bonded together. Water and instant coffee retain their individual properties and can be separated through physical means such as filtration or evaporation.
mixture
Coffee is a mixture
Instant coffee in water is a homogeneous mixture, meaning it has a uniform composition throughout. The coffee particles are fully dissolved in water, resulting in a consistent mixture.
Coffee is a mixture.
It is a homogeneous mixture.
Homogeneous
Only a coffee made with instant coffee is a homogeneous solution.
Only soluble (instant) coffee can form o homogeneous solution.
Coffee is a heterogeneous mixture. Its main composites are water and refined coffee beans which can be mechanically separated.