Answer:
oxygen molecule
Explanation:
I belive it is oxygen molecule
Answer:
ion exchange is the exchange of ions of the same charge between an insoluble solid and a solution in contact with it, used in water-softening and other purification and separation processes.
Explanation:
hope this helped !
The answer to your question is: Chemical Reaction.
Answer:
a
Explanation:
because it is matter . It has change in molèculaŕ level