Question

fireworks, KNO3
Give only the names of the elements alphabetically, separating them with commas.

Answer 1

Answer : The  question is to write the elements alphabetically and seperating them with commas.

So in this case for your question of Fireworks , K$NO_{3}$,

The answer will be K, N, O.

You have to just differentiate the elements and write them according to the alphabetical order.

Answer 2

Answer: The elements present are potassium, nitrogen and oxygen.

Explanation:

Elements are defined as the substances in which same type of atoms are present. For Example: Sodium, Chlorine etc.

The chemical formula of the compound used in fireworks is $KNO_3$

The chemical name for the compound is potassium nitrate.

This compound is formed by the combination of three elements. In 1 mole of potassium nitrate, 1 mole of potassium atom, 1 mole of nitrogen atom and 3 moles of oxygen atoms are present.

Hence, the elements present are potassium, nitrogen and oxygen.