The atoms undergo chemical changes.
New substances may be a product of the reaction.
Answer:
if ice is added more salt can be dissolved ...........
Answer:
Electrons orbit the nucleus.
In all atoms, the number of protons and the number of electrons is always the same. The number of neutrons is very roughly the same as the number of protons, but sometimes it's rather more. The number of protons in an atom is called the atomic number and it tells you what type of atom you have.
