How many atoms are in 5 moles of silver?

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?

How to draw a diagram to represent a calcium metal lattice?

Can someone solve thierry two problems