Some hydrogen is collected over water at 15 degrees C and 104.5 kPa. The total volume of the sample was 1.58 L. Calculate the volume of the dry gas at STP.

zfoods? ok, pressure is used to keep the heat inside and to keep the food perfect.

c, liquids evaporate, creating a gas

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.

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