(3 + 11) (8 – 3) + (30 5) (15 – 10)
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If we are talking about 3:30 A.M to 5:15 A.M. then it would be 1 hour and 45 minutes. It would be the same amount of time if we were to do 3:30 P.M. to 5:15 P.M. However, if we were to do 3:30 A.M. to 5:15 P.M. or 3:30 P.M to 5:15 A.M., then the amount of time passed would be 13 hours and 45 minutes.
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Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.
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