Chemistry
06.06.2021 02:18
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Balance this half-reaction: mno4- → mno2 (basic solution)
Balance this half-reaction: mno4- → mno2 (basic solution)
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Pointjazzyqueen602
4,7(95 marks)
Balance atoms: (for everything except oxygen and hydrogen):
MnO4- → MnO2 (atoms are balanced)
Balance oxygen:
MnO4- → MnO2 + 2H2O
Balance hydrogen:
4H+ + MnO4- → MnO2 + 2H2O
Make adjustments for basic solution.
Add hydroxide ions to balance hydrogen:
4OH- + 4H+ + MnO4- → MnO2 + 2H2O + 4OH-
Remove hydrogen by forming water molecules and removing them:
4H2O + MnO4- → MnO2 + 2H2O + 4OH-
Cancel out any water molecules that are on both sides of the equation:
2H2O + MnO4- → MnO2 + 4OH-
Balance charge:
2H2O + MnO4- +3e- → MnO2 + 4OH-
marmee
5,0(56 marks)
It would be MbO4- > MnO2+ 2H2O
staceyh146
4,4(35 marks)
Atlantic Ocean (North Atlantic ocean)
Explanation:
North Atlantic ocean borders Africa on the west coast.South Atlantic ocean and Indian ocean borders Africa on the south coast.Red sea and Indian ocean borders Africa on the East coast.Mediterranean sea borders Africa on the North.Popular Questions about the subject: Chemistry
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