If an artificial heart is capable of pumping at least 5.7x10' pints of blood before failure, how long, in years, will it robably last in a patient whose average heart rate is 72 beats per minute and an average stroke volume (the amount
f blood pumped with each beat) is 70 mL?

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).

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Cis the answer to your question