How many grams of nitrogen dioxide (NO2) will form from 45 g of oxygen gas (O2) N2 + 402 --> 2NO2

organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.

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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