Modern vacuum pumps make it easy to attain pressures of the order of 10⁻¹³ atm in the laboratory. a) at a pressure of 8.65×10⁻¹⁴ atm and an ordinary temperature of 296.0 k , how many molecules are present in a volume of 1.07 cm³? n= ? moleculesb) how many molecules would be present at the same temperature but at 1.06 atm instead? n=? molecules

One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. you see that the patch of light seems to be a circular diffraction pattern. it appears that the central maximum is about 1 cm across and you estimate that the distance from the window shade to the wall is about 3 m. what is (a) the average wavelength of sunlight? (b) the diameter of the pinhole?

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

In one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.