How much energy is required to melt 43.2 g of NaCl at its melting point of 801 ◦C? (∆H of fusion = 478.6 J/g)

answer is a

explanation:

c is the answer because when something is left after something evaporates that shows the chemical change.

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.