Using the periodic table and given atomic mass units rounded to two decimal places, calculate the atomic mass of Ca(NO3)2. Show your work and use the correct units.

it would be a gas formation

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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answer: mole of the gas

answer: mole of the gasexplanation: