Explain why tearing a newspaper and burning a newspaper are two different kind of changes. Needed urgently for tommorow's FA 3 exam. please help............
Tearing a paper will only shatter into pieces but burning of the paper will make it turn into ashes.Tearing a paper only change physically but burning of paper will change chemically. Tearing a paper does not form a new substance but burning a paper will form a new substance.
Tearing of paper will be a physical change because when we tear paper there are no new substances formed or released and also the pieces of paper have the same properties as the original paper . While in the case of burning the paper , a new substance called ash is formed and carbon dioxide is released and also ash has completely different properties when compared with paper . That's why burning of paper is a chemical change
Tearing of paper is a physical change because when we tear paper there is no change in the chemical properties of the torn pieces of paper and no new substance is formed. But when we burn a paper there are changes in the chemical properties and a new substance ash is formed . hence tearing of a paper is a physical change while burning of a paper is a chemical change.