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Two Hydrogen atoms covalently bonded to one Oxygen atom. One of the more common compounds on the surface of the earth.

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Where would a perfect sphere break under pressure?

My roommate who studies physics once showed me the leftovers of an interesting experiment: They filled up those metal balls with water and then froze it. … The water expanded and with all of its power blasted away the metal shells. Amazing stuff. But I came up with a question he couldn't answer with confidence when I saw that. …
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