Identify the atom that increases in oxidation number in the following redox reaction.
2MnO2 + 2K2CO3 + O2 2KMnO4 + 2CO2
*A.) Mn
B.) O
C.) K
D.) C
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Thank you.
Mn goes from +4 on the left to +7 on the right.
O goes from zero on the left to -2 on the right.
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To determine which atom increases in oxidation number in this redox reaction, we need to compare the oxidation numbers of the atoms before and after the reaction.
In MnO2, the oxidation number of Mn is +4, and in KMnO4, the oxidation number of Mn is +7. Since the oxidation number of Mn increases from +4 to +7, we can conclude that the atom that increases in oxidation number is Mn.
Therefore, the correct answer is A.) Mn.
To identify the atom that increases in oxidation number in the given redox reaction, we need to compare the oxidation numbers of each atom before and after the reaction.
In MnO2, the oxidation number of Mn is +4. In KMnO4, the oxidation number of Mn is +7. Therefore, the oxidation state of Mn has increased from +4 to +7.
The correct answer is A) Mn.