Multiple Choice
When naming the molecular compound SO_2, which prefix should be used for the oxygen atom?
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3. Chemical Reactions
Naming Molecular Compounds
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What is the correct name for the molecular compound NO_2?
A
Dinitrogen oxide
B
Nitrogen dioxide
C
Nitrous oxide
D
Nitrogen oxide
Verified step by step guidance1
Identify the elements present in the compound NO_2: nitrogen (N) and oxygen (O).
Recognize that NO_2 is a molecular compound composed of nonmetals, so we use prefixes to indicate the number of atoms of each element.
Determine the number of atoms of each element: 1 nitrogen atom and 2 oxygen atoms.
Apply the appropriate prefixes: 'mono-' for one (often omitted for the first element) and 'di-' for two, so the name starts with 'Nitrogen' and then 'dioxide' for two oxygen atoms.
Combine the parts to form the correct name: 'Nitrogen dioxide'.
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