Multiple Choice
Which chemical formula correctly represents tetraphosphorus decaiodide?
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3. Chemical Reactions
Naming Molecular Compounds
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Which of the following is the correct chemical formula for tetrasulfur pentoxide?
A
S4O5
B
S2O5
C
S5O4
D
SO5
Verified step by step guidance1
Understand the naming convention for the compound: 'tetrasulfur pentoxide' indicates the number of atoms of each element in the compound. 'Tetra-' means 4 sulfur atoms, and 'penta-' means 5 oxygen atoms.
Write the chemical formula by placing the element symbols followed by their respective quantities: sulfur (S) and oxygen (O). Since there are 4 sulfur atoms, write S with a subscript 4, and since there are 5 oxygen atoms, write O with a subscript 5.
Combine the symbols and subscripts to form the formula: \(S_4O_5\).
Check the options given and compare them to the formula derived from the name. The correct formula should match the number of atoms indicated by the prefixes in the name.
Confirm that the formula \(S_4O_5\) correctly represents tetrasulfur pentoxide, as it has 4 sulfur atoms and 5 oxygen atoms, matching the name.
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