The answer will be D because the reaction is what's first(A) and then it is the product that comes out.
Answer:
Pure elements:
Hydrogen(H)
Nitrogen(N)
Magnesium (Mg)
Pure Compounds:
Oxygen gas(O2)
Water (H2O)
Ammonia (NH3)
Explanation:
Hope it helps.Please mark me brainliest.^-^
