can it be decomposed into other substance by a chemical processs
of course, by the intermediate of chemical reactions
Yes, it is possible. Ex.: brine is a homogeneous solution and salt can be easily separated.
methanolammonia (NH4)ammonia (NH4)
Methane
If you are not concerned about atoms, electrons, neutrons, protons and other sub atomic particles, but confine to chemical substances occurring in nature or man made, the substance that cannot be broken into simpler substances is an "element" (usually enumerated in a periodic table).A chemical element cannot be decomposed into a simpler substance.Elements. They are defined as substances in their simplest form and cannot be broken down or decomposed into any simpler substances. They include all elements in the periodic table of elements.
a mixture
Yes, it is possible.
because a substance cannot be decomposed into simplier substances by chemical or physical means
methanolammonia (NH4)ammonia (NH4)
Methane
change into new substances
It is not obligatory.
Ne - neon, is an element and also a noble gas. It can not be decomposed by a chemical reaction. All the other substances can be.
If you are not concerned about atoms, electrons, neutrons, protons and other sub atomic particles, but confine to chemical substances occurring in nature or man made, the substance that cannot be broken into simpler substances is an "element" (usually enumerated in a periodic table).A chemical element cannot be decomposed into a simpler substance.Elements. They are defined as substances in their simplest form and cannot be broken down or decomposed into any simpler substances. They include all elements in the periodic table of elements.
The processes are called chemical reactions.
The substances which are all having uniform chemical composition through out are all known as homogeneous substances.
Yes. Formaldehyde is a chemical compound, which is a pure substance, and pure substances, in addition to solutions, are homogeneous.
a mixture
no idea