3 years ago

21. a. Describe why there is a difference in bond angles between H20 and CH4. (2 pts)

1 answer:

4 0

Answer:

The H—C—H bond angle in methane is the tetrahedral angle, 109.5°. This angle is obtained when all four pairs of outer electrons repel each other equally. The bond angles in water is less than 109.5° because of the stronger repulsion by their lone pairs of electrons.

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