Help worth 10 points! 15. 25.0 mL of a 3.25 M solution is diluted to 450.0 mL. What is the concentration of the diluted solution?
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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).