Which two simple machines are employed in a pair of scissors? lever and inclined plane a: lever and wedge b: wheel and axle and lever c: inclined plane and wedge d: description

The following transition occurs at a molecular level for a substance. what transition corresponds to this change in microscopic structure? the carbon dioxide molecules on the left are in a regular, tightly packed pattern. after heating, it becomes much lower density. a. melting b. boiling c. sublimation d. freezing