Answer in one word/ a few words.
A change in which heat energy is released__________.
Exothermic reaction - A change in which heat energy is released is called an exothermic reaction.
Example - Burning of candles, burning of fuels, etc.
Answer in one word/a few words.
Two examples of reversible changes.
Give one word/a few words answer⇢ poison of a snake _______
Substances formed in a reaction ___________.
Give one word/a few words for:
Any one chemical change.
Answer in one word:
A process in which oxygen is released by leaves.