객관식
Which of the following is the correct name for the polyatomic ion CH3CO2-?
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3. Chemical Reactions
Polyatomic Ions
객관식
The formula for the sulfate ion, SO42–. If the term of 'thio' means the replacement of an oxygen by a sulfur, what is the formula for the thiosulfate ion?
A
SO43-
B
SO33-
C
SO32-
D
S2O32-
E
S2O3-
검증된 단계별 안내1
Understand the term 'thio': In chemistry, 'thio' indicates the replacement of an oxygen atom with a sulfur atom in a compound.
Start with the sulfate ion formula: The sulfate ion is represented as \( \text{SO}_4^{2-} \).
Apply the 'thio' concept: Replace one oxygen atom in \( \text{SO}_4^{2-} \) with a sulfur atom. This changes the formula to \( \text{S}_2\text{O}_3^{2-} \).
Check the charge: The charge of the ion remains the same, \( 2- \), because the replacement of an oxygen atom with a sulfur atom does not affect the overall charge.
Verify the new formula: The thiosulfate ion is correctly represented as \( \text{S}_2\text{O}_3^{2-} \), which matches the given correct answer.
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