A rigid cylinder with a movable piston contains a sample of hydrogen gas. At 320. K, this sample has a pressure of 160. KPa and a volume of 3.85 L. What is the volume of this sample at STP?

The molecules contain like 54 of water 

Both models are effective because they show the valence electrons, and these valence electrons indicate the reactivity of an element.

Ithink that the use of creativity in the sciences entails that one produce something out of nothing or from another thing. with this, i think that the he wrote down his results as four parts of the atomic theory is the manifestation of the  creativity of john dalton.