an element
decomposition
If the above didn't answer your question, a substance that can be broken down into simpler substances is called a compound. Even the simplest compounds can be broken down into individual elements.
The process of changing food into a simpler substance is called COMBUSTION
I believe that we call matter that can no longer be separated into unique parts an atom. You cannot get any smaller than an atom and still have a recognizable substance. We can separate molecules into individual atoms. Elements consist of the same type of atom (i.e. gold is an element because it consists entirely of the atoms with the same number of protons and neutrons).
The process is call decomposition.
The simple bodies that enter originally into the composition of mixtures are called elements. Elements are substances that cannot be broken down into simpler substances by chemical means and are the building blocks of all matter.
Elements are called the building blocks of matter because they are the fundamental substances that compose all matter in the universe. Elements cannot be broken down into simpler substances through chemical reactions, making them the basic units from which all other substances are formed.
Something that cannot be dissolved is called insoluble.
Substances that cannot dissolve in water are called insoluble substances. These substances do not mix with water and remain as separate phases when added to water.
The term for a solute that cannot be dissolved in a particular solvent is "insoluble." This means that the substance does not form a homogeneous mixture with the solvent and remains as a separate solid phase.
its an insoluble substance
This substance is called a solute.