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Advanced Placement (AP), 04.02.2022 17:10 bammbamm538
When a 50 mL sample of C2H5OH is mixed with a 50 mL sample of H2O, the resulting mixture has a volume of 95 mL, and the container is warm to the touch. Which of the following best describes these observations?
A chemical reaction occurs, as evidenced by the volume of the resultant mixture being less than the total volume of the initial components
A chemical change occurs, as evidenced by the formation of new covalent bonds releasing more energy than is absorbed by the breaking of the existing covalent bonds
A physical change occurs, and the solvation process is exothermic
A physical change occurs, and the solvation process is endothermic.
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When a 50 mL sample of C2H5OH is mixed with a 50 mL sample of H2O, the resulting mixture has a volum...
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