Multiple Choice
Which of the following is a covalent (molecular) compound?
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3. Chemical Reactions
Naming Molecular Compounds
Multiple Choice
What is the correct name for the covalent compound with the formula SO_2?
A
Disulfur oxide
B
Sulfur oxide
C
Sulfur dioxide
D
Sulfur monoxide
Verified step by step guidance1
Identify the elements present in the compound SO_2: sulfur (S) and oxygen (O).
Recognize that SO_2 is a covalent 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 sulfur atom and 2 oxygen atoms.
Apply the appropriate prefixes: 'mono-' for one (usually omitted for the first element) and 'di-' for two, combined with the element names. For oxygen, the ending changes to '-ide' to form 'oxide'.
Combine the parts to form the name: 'sulfur' (no prefix for one atom) + 'di-' (for two oxygen atoms) + 'oxide', resulting in 'sulfur dioxide'.
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