How to calculate the de broglie wavelength for each of the following ? a. an electron with a velocity 10.% of the speed of light b. a tennis ball (55 g) served at 35 m/s (,80 mi/h)

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table

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.