Asample of water is being heated over a flame. what happens to the water as it is heated? (2 points)
the velocity of the water molecules begins to decrease.
the volume of the water decreases.
the water undergoes an endothermic reaction.
the kinetic energy of the water molecules increases.

Mrs. smith ordered a root beer float (vanilla ice cream + root beer). mrs. smith noticed that the three states of matter (solid, liquid, and gas) all existed simultaneously in her root beer float. a. identify each phase of matter in the root beer float. b. describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? ) c. identify one phase change you would see in a root beer float and described what causes this change.

What is the number of moles in 15.0 g ash3?

Given that 1 mi = 1760 yd, determine what conver- sion factor is appropriate to convert 1849 yd to miles; to convert 2.781 mi to yards.