Multiple Choice
Which is the correct name for the compound N2O3?
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3. Chemical Reactions
Naming Molecular Compounds
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What is the correct name for Cl_2O_7?
A
Chlorine heptoxide
B
Dichlorine heptoxide
C
Chlorine dioxide
D
Dichlorine oxide
Verified step by step guidance1
Identify the molecular formula given: Cl_2O_7, which contains 2 chlorine atoms and 7 oxygen atoms.
Recall the naming rules for binary molecular compounds (compounds made of two nonmetals): use prefixes to indicate the number of atoms of each element, and the second element's name ends with '-ide'.
For 2 chlorine atoms, use the prefix 'di-', and for 7 oxygen atoms, use the prefix 'hepta-'.
Combine the prefixes with the element names: 'dichlorine' for Cl_2 and 'heptoxide' for O_7 (oxygen changes to 'oxide' in the second element).
Put it all together to form the correct name: 'Dichlorine heptoxide'.
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