What is the molarity of a solution made by dissolving 1.25 mol of HCl in enough water to make 625 mL of solution?
A) 0.073 M
B) 2.00 M
OC) 28.5 M
D) 500 M

The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?

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?