Answer:
salt water heterogeneous mixture , pure substance compound,element solut8on
Answer : The question is to write the elements alphabetically and seperating them with commas.
So in this case for your question of Fireworks , K

,
The answer will be
K, N, O.
You have to just differentiate the elements and write them according to the alphabetical order.
Answer:
idfk
Explanation:
cause God made it that way