Multiple Choice
What is the correct name for the compound with the formula IF_7?
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3. Chemical Reactions
Naming Molecular Compounds
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Which of the following is the correct chemical formula for dioxygen difluoride?
A
OF2
B
O2F2
C
O2F
D
O3F2
Verified step by step guidance1
Understand the name 'dioxygen difluoride': 'dioxygen' means there are 2 oxygen atoms, and 'difluoride' means there are 2 fluorine atoms in the molecule.
Translate the prefixes into numbers: 'di-' corresponds to 2, so 'dioxygen' is O\_2 and 'difluoride' is F\_2.
Combine the atoms according to the numbers: the formula should have 2 oxygen atoms and 2 fluorine atoms, which gives O\_2F\_2.
Check the options given and compare them with the formula derived: O\_2F\_2 matches the name dioxygen difluoride.
Confirm that other options do not match the name: OF\_2 has 1 oxygen and 2 fluorines, O\_2F has 2 oxygens and 1 fluorine, and O\_3F\_2 has 3 oxygens and 2 fluorines, so they are incorrect.
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