Answer: Water has strong hydrogen bonds; H2S only has weak van der Waals forces.
- A Water has strong hydrogen bonds; H2S only has weak van der Waals forces
- B Water generally has a lower molecular weight than H2S in typical laboratory settings
- C H2S has stronger intramolecular covalent S-H bonds than water under usual circumstances
- D Water possesses partial ionic character in its O-H bonds according to most researchers
Correct answer: A. Water has strong hydrogen bonds; H2S only has weak van der Waals forces
Explanation: Water molecules form extensive hydrogen bonds; H2S cannot form hydrogen bonds because sulfur's electronegativity is too low.
VSEPR theory predicts molecular shape from the number of bonding and lone electron pairs around the central atom.
Concept context
Understand how atoms join to form molecules. Covers ionic and covalent bonding, VSEPR theory, hybridization (sp, sp², sp³), molecular orbital theory, bond polarity, and intermolecular forces like hydrogen bonding.
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