What is the difference between mass and weight?

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Answer ➜ Mass is the amount of matter in a material, while Weight is a measure of how the force of gravity acts upon that mass.

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Mass is defined as the amount of inertia (resistance to change in motion) that something has. Weight is how heavy it is. Example: in space, weight does not change, mass does.

Explanation:

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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.

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