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Diamonds are used to scratch glass chemical or physical change?
Wiki User
∙ 14y ago
This is a physical change. There is nothing that changes the components of either the diamond or the glass when the diamond is used to scratch glass.
Wiki User
∙ 14y ago
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Is stapling an envelope a physical change or chemical?
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Chemical change: the composition of the initial reactants is changed. Ex.: thermal decomposition of calcium carbonate. Physical change: the composition is not changed during this transformation. Ex.: boiling of water.
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the difference between a physical change and a chemical change is that a physical change is usually reversible whilst a chemical change is not reversible.
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