Briefly explain physical and chemical property

physical property: Any characteristic that can be determined without changing the substance's chemical identity.

chemical property: Any characteristic that can be determined only by changing a substance's molecular structure.

Explanation:

Physical property: Any characteristic that can be determined without changing the substance's chemical identity.

Chemical property: Any characteristic that can be determined only by changing a substance's molecular structure.

Explanation:

african americans demonstrated their newly found freedom by relocating often in search of relatives whom they had been separated from during slavery. others established schools to educate freed people and they built institutions such as churches and political organizations to advocate for their rights.

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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