Multiple Choice
Which of the following best describes the classification of sodium chloride (NaCl) among the halides?
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3. Chemical Reactions
Naming Ionic Compounds
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Which of the following is the correct name for the compound NaBr?
A
Sodium bromide
B
Sodium dibromide
C
Sodium bromine
D
Sodium bromate
Verified step by step guidance1
Identify the elements present in the compound NaBr. Here, Na is sodium, a metal, and Br is bromine, a nonmetal.
Recognize that NaBr is an ionic compound formed between a metal (sodium) and a nonmetal (bromine). Ionic compounds are named by stating the metal (cation) first, followed by the nonmetal (anion) with its ending changed to '-ide'.
Since sodium forms a +1 ion (Na⁺) and bromine forms a -1 ion (Br⁻), the compound is neutral with a 1:1 ratio, so no prefixes are needed.
Change the name of the nonmetal bromine to its anion form by replacing the ending '-ine' with '-ide', resulting in 'bromide'.
Combine the names of the cation and anion to get the correct name: 'Sodium bromide'.
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