I suppose that you think to atoms.
polymer
Robert Boyle
It is an element, composed of atoms.
Decomposition reactions involve the breakdown of one larger molecule into several smaller molecules.
There are a few substances smaller than the atom, they're called sub-atomic particles and include things like protons, neutrons, electrons, photons, quarks etc.
The atom or smaller, the amount of protons like helium always has 2 protons no matter what.
A mixture is not a substance because it is made up of two or more different substances that are physically combined together but can be separated by physical means, such as filtering or evaporation. Substances, on the other hand, are pure and cannot be separated by physical means.
no ---------- Elements are atoms, which can be separated into smaller particles such as protons, neutrons, electrons, and quarks, but usually not by chemical processes.
Filtering water can effectively remove suspended particles, such as sediments, dirt, and larger impurities. It can also reduce microorganisms, such as bacteria and protozoa, depending on the filter's pore size. However, smaller dissolved substances, like salts and certain chemicals, typically require more advanced treatment methods, such as reverse osmosis, to be effectively removed.
For most substances, the distance between particles is smallest when the substance is in its solid state. In a solid, particles are densely packed and held closely together by strong intermolecular forces, resulting in a smaller distance between particles compared to liquids or gases where particles are more spaced out.
Chemical substance constant chemical composition while chemical element is single type of atom distinguished by its atomic number. A common example of a chemical substance is pure water, Chemical element including hydrogen, helium and smaller amounts of lithium, beryllium and boron. For more Google us at tatvachintan pharmaceutical.
element