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Pronounced "hobberfinkle", a mnemonic device for chemistry students created by a chem teacher at our high school, in the vein of "SOHCAHTOA".

This usefulness of this phrase lies in the fact that it encapsulates the symbols of all seven diatomic elements.

H2 = hydrogen (gas at room temperature)
O2 = oxygen (gas)
Br2 = bromine (liquid at r.t.)
F2 = fluorine (gas)
I2 = iodine (liquid)
N2 = nitrogen (gas)
Cl2 = chlorine (gas)

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