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AP Biology852 views·Updated Aug 3, 2026Introduction to Water Polarity and Bonding
Practice identifying partial charges and the chemical basis of hydrogen bond formation between polar water molecules.
Which of the following best describes the chemical cause of the partial negative charge on the oxygen atom within a water molecule?
- Which of the following best describes the chemical cause of the partial negative charge on the oxygen atom within a water molecule? — Oxygen has a higher electronegativity than hydrogen, leading to unequal sharing of electrons.
- A student observes that water forms spherical droplets on a waxy surface. Which interaction between water molecules is primarily responsible for this cohesive behavior? — Hydrogen bonds forming between the partial charges of adjacent water molecules.
- In a diagram of two water molecules interacting, where would a dotted line representing a hydrogen bond be correctly placed? — Between the oxygen atom of one molecule and a hydrogen atom of another molecule.
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