How many moles of n2 are in a flask with a volume of 250ml at a pressure of 300.0 kpa and a temp of 300.0 k

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring

What four properties do all waves have in common

Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ