Multiple Choice
Which of the following is the correct chemical formula for sodium hydrogen carbonate?
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3. Chemical Reactions
Naming Ionic Compounds
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When naming ionic compounds, how does the name of a negative ion (anion) typically change?
A
The prefix 'hydro-' is added to the element's name.
B
The ending of the element's name is replaced with '-ate'.
C
The ending of the element's name is replaced with '-ide'.
D
The element's name remains unchanged.
Verified step by step guidance1
Understand that ionic compounds consist of positive ions (cations) and negative ions (anions).
Recall that when naming anions formed from single elements (monatomic anions), the element's name is modified to indicate its negative charge.
Specifically, the ending of the element's name is replaced with the suffix '-ide' to show it is an anion. For example, chlorine becomes chloride.
Note that the prefix 'hydro-' is typically used in naming certain acids, not in naming simple anions.
Recognize that the suffix '-ate' is used for polyatomic ions containing oxygen, not for simple monatomic anions.
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