How many molecules are in 2.5 mol of NaCl?

Sugar is dissolved in water. which is the solute? sugar neither both water

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2

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?