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What is the oxidation state of sulfur in the sulfate ion, SO_4^{2-}?
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6. Chemical Quantities & Aqueous Reactions
Calculate Oxidation Numbers
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What is the oxidation state of manganese (Mn) in Mn(ClO4)3?
A
+7
B
+2
C
+6
D
+3
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Identify the overall charge of the compound Mn(ClO4)3. Since no charge is given, assume it is neutral (charge = 0).
Determine the charge of the perchlorate ion (ClO4). The perchlorate ion has a charge of -1.
Since there are three perchlorate ions, the total negative charge contributed by the perchlorate ions is 3 × (-1) = -3.
Let the oxidation state of manganese (Mn) be x. Write the equation for the sum of oxidation states in the compound: x + 3(-1) = 0.
Solve the equation for x: x - 3 = 0, so x = +3. Therefore, the oxidation state of Mn in Mn(ClO4)3 is +3.
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