Sovi.AI - AI Math Tutor

Scan to solve math questions

QUESTION IMAGE

match the molecular shapes with the lewis structures. choices 11 bent l…

Question

match the molecular shapes with the lewis structures. choices 11 bent li trigonal pyramidal 11 trigonal planar 11 tetrahedral 11 linear

Explanation:

Brief Explanations
  • For the first molecule (CH₄ - methane), the central carbon atom has 4 bonding pairs and no lone pairs. According to VSEPR theory, 4 bonding pairs arrange in a tetrahedral geometry.
  • For the second molecule (NH₃ - ammonia), the central nitrogen atom has 3 bonding pairs and 1 lone pair. The 3 bonding pairs and 1 lone pair around the central atom result in a trigonal pyramidal shape (the lone pair affects the molecular geometry to give this non - planar, pyramidal shape).
  • For the third molecule (BCl₃ - boron trichloride), the central boron atom has 3 bonding pairs and no lone pairs. 3 bonding pairs around a central atom arrange in a trigonal planar geometry according to VSEPR theory.

Answer:

  • First Lewis structure (CH₄): tetrahedral
  • Second Lewis structure (NH₃): trigonal pyramidal
  • Third Lewis structure (BCl₃): trigonal planar