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The chemical compound that covers 2/3 of the Earth is water. Seventy percent of the Earth is water. Water is made of 2 hydrogen atoms and one oxygen atom that are connected by a covalent bond.

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10y ago
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AnswerBot

5mo ago

Water (H2O) covers over two thirds of the Earth's surface.

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16y ago

H2O.

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Q: What chemical compound covers over two thirds of the earths surface?
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