Phosphorus burns in air to give phosphorus pentaoxide is this chemical or physical change and why?
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this is a chemical change because new substance Phosphorus pentoxide is formed
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forming of phosphorus pentaoxide from phosphorus when burnt is a chemical change because of 2 reasons:
1) there is a change in the chemical composition of phosphorus as oxygen has been added into it.
2) a new substance is formed when phosphorus is burnt.
1) there is a change in the chemical composition of phosphorus as oxygen has been added into it.
2) a new substance is formed when phosphorus is burnt.
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