Multiple Choice
Which of the following is the correct chemical formula for cobalt(III) hydroxide?
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3. Chemical Reactions
Naming Ionic Compounds
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What is the correct name for the compound with the formula NH_4NO_2?
A
Ammonium oxide
B
Ammonium nitrite
C
Nitrous ammonium
D
Ammonium nitrate
Verified step by step guidance1
Identify the ions present in the compound NH_4NO_2. The formula consists of NH_4^+ (ammonium ion) and NO_2^- (nitrite ion).
Recall that the name of an ionic compound is given by naming the cation first followed by the anion.
The cation NH_4^+ is called ammonium, and the anion NO_2^- is called nitrite.
Combine the names of the cation and anion to form the compound name: ammonium nitrite.
Verify that the name matches the formula by ensuring the charges balance to zero, confirming the compound is correctly named ammonium nitrite.
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