because a substance cannot be decomposed into simplier substances by chemical or physical means
Element Compounds can be broken down to elements (atoms) which cannot be decomposed further into simpler substances (that's why they're called a-toms, from Greek 'à-tomos', meaning 'un-sliceable'.
In the appropriate situation, all compounds are broken down into simpler substances.
catabolism is the process that releases energy to convert substances to simpler products
Elements cannot be changed into simpler substances by chemical means. To change them into simpler particles, you need nuclear means.
A chemical reaction, though often it is not a simpler substance.
no
Elements
Aluminium - it is an element... the rest of the substances in your list are compounds.
methanolammonia (NH4)ammonia (NH4)
Element Compounds can be broken down to elements (atoms) which cannot be decomposed further into simpler substances (that's why they're called a-toms, from Greek 'à-tomos', meaning 'un-sliceable'.
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.
It depends on the liquid. As an example, bromine and mercury are elements and can not be broken down into simpler substances.
Electrolysis is the process by which ionic substances are decomposed (broken down) into simpler substances when an electric current is passed through them.
The hydrogen peroxide is both oxidized and reduced, to produce water and elemental oxygen.
An element
in biology or chemistry:yes a single atom can further be divide into a simpler substance by means of atomic fission
Decomposition