क्या कोई मुझे लाइक देगा
Answers
Answer:
follow to fet back
Explanation:
Chemical changes occur all around you in everyday life. Whenever a chemical reaction occurs, the chemical properties of the original substance change to create an entirely new substance. Some examples of chemical changes include:
Iron rusting
Burning firewood
Grilling meat
Organic matter decomposing
Fruit ripening
Food being digested
Frying an egg
Baking cookies
Photosynthesis
Tarnished silver
Food spoiling
Teeth decaying
Wine fermenting
Firing clay in a kiln
Respiration (breathing)
Fireworks exploding
Most of these changes cannot be undone after a chemical reaction. While you can use silver polish to remove tarnish with another chemical reaction, for example, you can’t unfry an egg or reverse the decomposition process of a dead leaf. Determining whether a change can be undone is a key factor in deciding whether an item’s change is chemical or physical.