The name of the compound K3N is potassium nitride (C).
Answer:
C. element. oxygen is an element
Explanation:
oxygen is element #8
Answer:
lighting a match is the answer.
Mg gained mass because it went from being a single element (on the reactant side) to being a molecule (on the product side).
An alp-ha particle is equivalent to the nucleus of a helium atom. Helium Atom = Answer.
