An element
Atom of carbon?
compounds CAN be decomposed elements CANTThe answer would be Mercury because it is an element and can't be broken down by chemical means. but methane, ethanol and ammonia can be broken down by physical means because they are compounds.
In a nuclear reaction, the nucleus of an atom undergoes a change. Common examples would be alpha decay, beta decay, fusion, and fusion. In each of those cases, different elements are formed in the process. This never happens in ordinary chemical reactions. In chemical reactions, it is the electrons that are involved , not the nucleus of the atom.
because it is radiation and radiation can not be affected by temperature and/or concentration.
In an ordinary chemical reaction, the mass of the products is equal to the mass of the reactants. Matter is conserved.
chemical reactions....actually it is matter (mass)
of course, by the intermediate of chemical reactions
This particle is the atom.
It involves the particles of the nucleus (protons and neutrons), not the electrons.
The law of Conservation of Mass states that in ordinary chemical reactions, mass can not be created or destroyed.
Atom of carbon?
Only those involved in nuclear reactions. Ordinary chemical reaction can not effect this change.
This is called molecule.
Hydrogen reacts at different speeds with different substances, and the speed of any reaction depends on the conditions.
Oxygen O2
compounds CAN be decomposed elements CANTThe answer would be Mercury because it is an element and can't be broken down by chemical means. but methane, ethanol and ammonia can be broken down by physical means because they are compounds.
In a nuclear reaction, the nucleus of an atom undergoes a change. Common examples would be alpha decay, beta decay, fusion, and fusion. In each of those cases, different elements are formed in the process. This never happens in ordinary chemical reactions. In chemical reactions, it is the electrons that are involved , not the nucleus of the atom.