QQuestionChemistry
QuestionChemistry
The Lewis structure of N^2 H^2 shows:
A. a nitrogen-nitrogen triple bond
B. a nitrogen-nitrogen single bond
C. each nitrogen has one nonbonding electron pair
D. each nitrogen has two nonbonding electron pairs
E. each hydrogen has one nonbonding electron pair
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Answer
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Step 1:I'll solve this step by step, focusing on drawing the Lewis structure for N₂H₂ and analyzing its bonding characteristics.
Step 2:: Determine the total number of valence electrons
- Total valence electrons: $$10 + 2 = 12$$ electrons
- Nitrogen (N): 5 valence electrons × 2 = 10 electrons - Hydrogen (H): 1 valence electron × 2 = 2 electrons
Step 3:: Arrange atoms and connect with single bonds
- Initial single bonds use $$4$$ electrons
- Arrange the structure as H-N-N-H
Step 4:: Distribute remaining electrons as lone pairs
- Each nitrogen will have $$2$$ lone pairs
- Place lone pairs on nitrogen atoms to complete their octets
Step 5:: Analyze the Lewis structure
- Each hydrogen has $$0$$ nonbonding electron pairs
- Nitrogen-nitrogen bond is a single bond
Final Answer
B. a nitrogen-nitrogen single bond D. each nitrogen has two nonbonding electron pairs
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