Question

what advice would you give your younger self?
some advice i would give to my younger self: is to stop rushing to grow up and to have as much fun while it lasts
list some clues that a chemical reaction is happening

Explanation:

These are observable changes that indicate the formation of new substances, which defines a chemical reaction.

Answer:

1. Color change (e.g., rusting iron turning reddish-brown)
2. Production of a gas (e.g., bubbles from baking soda and vinegar)
3. Formation of a precipitate (e.g., solid settling in a liquid mixture)
4. Temperature change (e.g., heat released in a combustion reaction, or cooling in an endothermic reaction)
5. Production of light (e.g., a glowing splint reigniting in oxygen, or a chemical glow stick)