QQuestionChemistry
QuestionChemistry
"The name for Na^3N is:
A. sodium nitride
B. sodium (I) nitride
C. trisodium mononitride
D. sodium (III) nitride
E. trisodium nitride"
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Answer
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Step 1:I'll solve this chemical nomenclature problem step by step:
Step 2:: Analyze the chemical formula Na^3N
- Na represents sodium - N represents nitrogen - The subscript 3 indicates there are 3 sodium atoms - The subscript 1 (for N) is implied
Step 3:: Determine the oxidation states
- Sodium (Na) always has an oxidation state of + 1 - Nitrogen (N) typically has an oxidation state of - 3
Step 4:: Calculate total charge
- $$3 \times (+1) + 1 \times (-3) = 0
- The total charge balances to zero, confirming the compound's neutrality
Step 5:: Apply IUPAC nomenclature rules
- When multiple atoms of the same element are present, use the prefix "tri-" - For sodium, no Roman numeral is needed since it consistently has a + 1 charge - The base name for nitrogen compound is "nitride"
Step 6:: Construct the correct name
- Combine "trisodium" and "nitride"
Final Answer
Explanation: The systematic name follows the rules of chemical nomenclature by indicating the number of sodium atoms (tri-) and the base name for the nitrogen-containing ion (nitride).
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