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When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.