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How are new substances formed? Please hurry I will appreciate it and mark brain list !
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How are new substances formed? Please hurry I will appreciate it and mark brain list !

User Dsapalo
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They can be caused by chemical changes, which alter the atomic structure, and are irreversable. Like burning, or adding another certain chemical
But it's not a physical change, which is reversable, like tearing, cutting, or folding
User MOCKBA
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