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Simply remember OIL RIG. Oxidation Is Loss (of electron) and Reduction Is Gain (of electron). In the case of MnO4-(aq) + 8H+(aq) + 5e- --> Mn2+(aq) + 4H2O(l) H is the oxidizing agent, because it causes Mn to be oxidized to Mn2+.

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9y ago
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6y ago

The oxidation state of magnesium in magnesium hydroxide is +2 no matter what reaction you are looking at.

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Maryam G.

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2y ago
correct!
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pervy toad

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I got wrong it's 0
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Priscus Didas

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This answer is correct

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13y ago

The Chlorine. Which is being reduced ( accepting electrons )

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bruh_man *

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This is the answer on Apex, +2 is wrong

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Jesus H

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4mo ago
Correct on CST 5.5.2 chemistry 1

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Q: In the reaction Mg(s) plus 2H2O(I) and 61664 Mg(OH)2(s) plus H2(g) what is the oxidation state of each H in H2(g)?
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