What is the density of xenon gas at STP? Xenon's molar mass is 131.29g / (mol)

Endeleev saw trends in the physical and chemical properties of elements when he organized them by

Use the periodic table to complete this equation that represents nuclear fission processesun - ba c 3 n

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m