Examlex
Which of the following statements best expresses the belief of most middle- and upper-class Americans about poverty in the late nineteenth century?
Elemental Symbol
A one or two-letter abbreviation derived from the element's English or Latin name used to represent an element in chemical formulas.
Lewis Structure
A diagrammatic representation of the bonding between atoms of a molecule and the lone pairs of electrons in the molecule, showing how valence electrons are distributed.
Oxygen Molecule
A diatomic molecule composed of two oxygen atoms (O2), essential for aerobic respiration in animals.
Resonance Structure
Different forms of a molecule where the chemical connectivity is the same but the electrons are distributed differently around the structure.
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