Question

20 types of chemical changes​

Answer 1

Answer:

Rusting of iron in presence of moisture and oxygen.

Burning of wood.

Milk becoming curd.

Formation of caramel from sugar by heating.

Baking of cookies and cakes.

Cooking any food.

Acid-base reaction.

Digestion of food.

Answer 2

$\huge\green{\mid{\fbox{{Answer}}\mid}}$

they are 20 types of chemical changes

1) burning of paper

2) cooking of food

3) burning of wood

4) ripening of fruits

5) rotting of fruits

6) frying egg

7) rusting of iron

8) mixing acid and base

9) digestion of food

10) baking of cookies and cakes

11) milk becoming curd

12) rusting of iron in presence of moisture and oxygen

13) Acid and base reaction

14) formation of caramel from sugar by heating

15) formentation

16) firework explosions

17) waste decomposition

18) paper burning

19) formation of cheese and milk

20) burning of candles