As your hair looses electrons it becomes blank charged

How much heat is released upon converting one mole of steam (18.0 g) from 100.0 ∘c to water at 25.0 ∘c? show work and constants, trying to figure out how it works. only given the heat capacity for steam and water so try to only use that

Why is the melting of ice a physical change ?

The ammonia molecule in the diagram has the observed bond orientation because