Question

Which of these processes are chemical reactions? 1. boiling an egg 2. crushing spices 3. vegetables rotting 4. chopping vegetables 5. dew forming​

Answer 1

That would be vegetables rotting and boiling an egg. . The others are physical changes.

Answer 2

boiling an egg and vegetables rotting . It is because chemical reaction are reactions where new substances are formed and the reaction are usually irreversible .
Hope this helps.