Multiple Choice
Which of the following is the correct name for the molecule PCl_3?
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3. Chemical Reactions
Naming Molecular Compounds
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Which of the following is the correct chemical formula for disulfur decafluoride?
A
SF6
B
S2F10
C
S2F2
D
SF10
Verified step by step guidance1
Step 1: Understand the naming convention for covalent compounds, which often use prefixes to indicate the number of atoms of each element in the molecule. 'Di-' means 2, and 'deca-' means 10.
Step 2: Identify the elements involved: 'disulfur' means there are 2 sulfur (S) atoms, and 'decafluoride' means there are 10 fluorine (F) atoms.
Step 3: Combine the number of atoms with their respective element symbols to write the chemical formula. Since there are 2 sulfur atoms and 10 fluorine atoms, the formula is S2F10.
Step 4: Verify that the formula matches the naming: 'disulfur' corresponds to S2 and 'decafluoride' corresponds to F10, confirming the formula S2F10.
Step 5: Recognize that other options like SF6, S2F2, or SF10 do not match the prefix-based naming given in the problem.
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