Multiple Choice
Which of the following is the correct chemical formula for phosphorus triiodide?
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3. Chemical Reactions
Naming Molecular Compounds
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What is the correct name for the molecular compound N_2O_3?
A
Nitrogen trioxide
B
Nitrogen dioxide
C
Dinitrogen pentoxide
D
Dinitrogen trioxide
Verified step by step guidance1
Identify the elements in the compound: N_2O_3 consists of nitrogen (N) and oxygen (O).
Determine the number of atoms of each element: there are 2 nitrogen atoms and 3 oxygen atoms.
Use the appropriate prefixes to indicate the number of atoms: 'di-' for 2 and 'tri-' for 3.
Name the first element with its prefix (except 'mono-' is usually omitted for the first element), so 'dinitrogen'.
Name the second element with its prefix and change the ending to '-ide', so 'trioxide'. Combine to get 'dinitrogen trioxide'.
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