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hydrogen fluoride
n.
1.a colorless poisonous corrosive liquid made by the action of sulphuric acid on calcium fluoride
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hydrogen cyanide
hydrogen chloride
hydrogen carbonate
hydrogen bromide
hydrogen bond
hydrogen bomb
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hydrogen atom
hydrogen
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hydrogen iodide
hydrogen ion
hydrogen ion concentration
hydrogen peroxide
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hydrogenated
hydrogenation
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speech rhythm
making known
zep
dreissena polymorpha
horseradish root
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cold-cream
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bowling green
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on credit
buying or selling something by using credit
I purchased the stereo on credit.
1.
Some airlines want to see your passport when you check ________
a.
up
b.
in
c.
out
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There are 60,000 miles of blood vessels in the human body.
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