When a substance reacts chemically to create a new substance, will that new substance have the same physical and chemical properties as the initial substance? Explain your answer.

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It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).