AP Chemistrymediummcq1 pt
Which species is planar?
A.CO₃²⁻
B.CH₄
C.NH₃
D.H₂O
Explanation
Core Concept
Carbonate's three resonance bonds around carbon give trigonal planar geometry with 120° angles and sp² hybridization. All four atoms lie in one plane.
Correct Answer
ACO₃²⁻
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