The "diameter" of an n2 molecule is roughly 360 pm. how far (in μm) does one molecule in a sample of pure n2 typically travel before colliding with another n2 molecule, if the gas is held at stp.

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?

Can someone me out on this question for my national 5 chemistry homework

Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.