Consider two samples of gas. Sample A has pressure P, temperature T and volume V. Sample B has pressure P, temperature T/2 and volume V. Gas A has the mass of molecule M, gas B has mass of molecule 4M. What is the number of molecules in sample B in terms of number of molecules of sample A, N

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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~ trueboss72

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.