If 392 cm3 of helium at 32°C and 925 torr are cooled to -15°C and the pressure is reduced to 775 torr, calculate the new volume
the gas will occupy.

Mrs. smith ordered a root beer float (vanilla ice cream + root beer). mrs. smith noticed that the three states of matter (solid, liquid, and gas) all existed simultaneously in her root beer float. a. identify each phase of matter in the root beer float. b. describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? ) c. identify one phase change you would see in a root beer float and described what causes this change.

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.