Examlex
Which of the following statements about short selling is (are) true?
I. Short selling requires an initial margin deposit.
II. Short sellers begin a transaction with a sale and end it with a purchase.
III. Short sellers profit when the stock prices rises.
IV. Short selling can be a risky strategy.
Lewis Structure
A Lewis structure is a diagrammatic representation of the arrangement of valence electrons around atoms in molecules, indicating the bonding between atoms as well as the lone pairs of electrons.
Ethyne
A colorless gas with a sharp, distinct odor; the simplest alkyne, it is a hydrocarbon with the formula C2H2.
Acetylene
A hydrocarbon and the simplest alkyne, used as a fuel and a chemical building block, recognized by its formula C2H2.
Covalently Bonded Molecule
A molecule whose atoms are held together by covalent bonds, which involve the sharing of electron pairs between atoms.
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