Q1:-
cutting of tree is physical or chemical change
Answers
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Answer: Cutting of tree is a physical change.
Explanation: During a physical change, the molecules are rearranged without changing the internal composition. A physical change has no effect on the chemical property of the matter. Cutting of trees is a physical change because in cutting the molecular structure of the trees does not change, only the size of the wood changes as it is cut into small pieces.
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Cutting of Trees is a physical change since the molecular structure of the trees does not change when they are chopped into little pieces; only the size of the wood changes.
Explanation:
- Physical changes alter a chemical substance's appearance but not its chemical content.
- Physical changes can be employed to separate mixtures into their constituent compounds, but not to separate compounds into chemical elements or smaller molecules.
- Physical alterations occur when an item or material undergoes a transformation that does not alter its chemical composition.
- This is in contrast to chemical change, which occurs when a substance's composition changes or when one or more components mix or break apart to generate new substances.
- n most cases, a physical alteration can be reversed through physical methods. Salt dissolved in water, for example, can be retrieved by letting the
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