what is the molarity of a solution containing 23 g of nacl in 500 ml of solution?

What happens when an acid dissolves?

Stage in which a star’s outer layers have started to cool and grow outward?

A2-kg bowling ball is 1 meter off the ground on a post when it falls. just before it reaches the ground, its traveling 4.4 m/s. assuming that there is no air resistant, which statement is true a. the initial potential energy is less then the final kinetic energy b. the mechanical energy is not conserved c. the mechanical energy is conserved d. the initial potential energy is greater than the final kinetic energy