How many atoms in this molecule have a trigonal planar geometry? 
Definitions:
Covariation Principle
A principle used to explain how people attribute cause; they note the pattern between the presence or absence of possible causal factors and whether the behavior occurs.
Inference
The process of drawing conclusions from available evidence or premises, often used in reasoning and problem-solving.
Kelley's Covariation Model
A psychological theory that explains how individuals attribute cause to events based on the pattern of covariation between event and possible causes, considering consistency, distinctiveness, and consensus.
Zombie-Themed
Relating to or characteristic of creative works, events, or merchandise inspired by zombies or the concept of a zombie apocalypse.
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Q52: Use the partial activity series included