Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?

Dry ice undergoes sublimation, an endothermic change at room temperature.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

2b2t

explanation:

2b2t