Diffusion in physics​

A-of 75 cm by cm by 17.5 cm up. of is 2 kg a , in ,if it is in , kg/?

In a system, when potential energy decreases, then entropy also decreases. true false

(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present