Advantages of hard water​

What is an example of a physical property?

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

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?