How many atoms of a Group 17 element would be needed to react with one atom of a Group 2 element to form a neutral bond? Explain.

Agas mixture with a total pressure of 745 mmhg contains each of the following gases at the indicated partial pressures: co2, 245 mmhg ; ar, 119 mmhg ; and o2, 163 mmhg . the mixture also contains helium gas. part a what is the partial pressure of the helium gas? phe p h e = nothing mmhg request answer part b what mass of helium gas is present in a 10.2-l sample of this mixture at 283 k ? m m = nothing g request answer

What term is missing from the central region that describes hypotheses, theories, and laws? popular predictable mathematical falsifiable

Why do oxygen have a strong attractive force for electrons