Imagine that you wanted to make a time capsule in which you would seal important artifacts from your life (pictures, poems, a lock of your baby hair, etc.), to be opened by your heirs 1000 years from now. To prevent these artifacts from decaying, you want to fill the capsule with a gas that would be least reactive. Which of these gases would you choose: oxygen gas (O2); carbon dioxide (CO2); argon gas (Ar); hydrogen gas (H2). (The atomic numbers of the atoms in these molecules are: oxygen = 8; carbon = 6; hydrogen = 2; and argon = 18.)

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    carbon dioxide
    oxygen gas
    argon gas
    hydrogen gas

asked May 29, 2013 in Biology by anonymous
    

1 Answer

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argon gas
answered May 30, 2013 by Bioshare ~Top Expert~ (34,070 points)

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