Gases Chemistry Worksheet - Chapter 13, An Introduction To Chemistry Page 49
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Chapter Problems
120. About 90% of the atoms in the universe are thought to be hydrogen atoms.
Thus hydrogen accounts for about 75% of the mass of the universe. The Earth’s
crust, waters, and atmosphere contain about 0.9% hydrogen. Why is there so
much less hydrogen on the Earth than in the rest of the universe? The planet
Jupiter is thought to consist of about 92% hydrogen. Why is there so much
more hydrogen on Jupiter than on Earth?
121. When a scuba tank is filled from a storage tank, the scuba tank gets warmer
and the temperature of the storage tank goes down. Why?
122. Why does a helium filled balloon that escaped to the ceiling drop to the floor
overnight?
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