How many unpaired electrons does manganese have.

Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both

What factor besides temperature affects the boiling point of water? a. mass b. number of moles c. volume d. pressure

The first supersonic flight was in 1947. it was just above the speed of sound. which altitude would you expect captain yeager to have used for his flight