Balancing Redox Equations
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Li + CuSO4 --> Cu + Li2SO4
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3Li + 2CuSO4 --> 2Cu + 3Li2SO4
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Li + CuSO4 --> Cu + Li2SO4
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2Li + CuSO4 --> Cu + Li2SO4
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Li + 2CuSO4 --> 2Cu + Li2SO4
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PRactice balancing equations
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- 2.
O2 + H2S --> S + H2O
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2O2 + 2H2S --> 2S + H2O
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O2 + 2H2S --> S + 2H2O
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2O2 + H2S --> 2S + 2H2O
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O2 + 2H2S --> 2S + 2H2O
Correct Answer
A. O2 + 2H2S --> 2S + 2H2O -
- 3.
HNO3 + Fe --> Fe(NO3)3 + NO + H2O
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4 HNO3 + Fe --> Fe(NO3)3 + NO + 2 H2O
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HNO3 + Fe --> Fe(NO3)3 + NO + H2O
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HNO3 + 2Fe --> Fe(NO3)3 + NO + 2 H2O
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4 HNO3 + Fe --> Fe(NO3)2 + NO + 2 H2O
Correct Answer
A. 4 HNO3 + Fe --> Fe(NO3)3 + NO + 2 H2O -
- 4.
MnO2 + O2 + KOH --> K2MnO4 + H2OThis is in basic conditions.Hint: Do not separate the MnO2 as actually it is considered covalent.
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MnO2 + O2 + KOH --> K2MnO4 + 2 H2O
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2 MnO2 + O2 + KOH --> 2 K2MnO4 + H2O
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MnO2 + O2 + 4 KOH --> K2MnO4 + 2 H2O
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2 MnO2 + O2 + 4 KOH --> 2 K2MnO4 + 2 H2O
Correct Answer
A. 2 MnO2 + O2 + 4 KOH --> 2 K2MnO4 + 2 H2O -
- 5.
NaClO + NaI + HCl --> I2 + NaCl
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2NaClO + 2 NaI + 2 HCl --> I2 + 2 NaCl
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NaClO + 2 NaI + 2 HCl --> I2 + 2 NaCl
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2NaClO + NaI + 2 HCl --> I2 + 2 NaCl
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NaClO + 2 NaI + 2 HCl --> 2I2 + NaCl
Correct Answer
A. NaClO + 2 NaI + 2 HCl --> I2 + 2 NaCl -
- 6.
CHALLENGING!FeSO4 + KMnO4 + H2SO4 --> Fe2(SO4)3 + MnSO4 + K2SO4 + H2O
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5 FeSO4 + KMnO4 + 8 H2SO4 --> 5 Fe2(SO4)3 + MnSO4 + K2SO4 + 8 H2O
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10 FeSO4 + 2 KMnO4 + 8 H2SO4 --> 5 Fe2(SO4)3 + 2 MnSO4 + K2SO4 + 4 H2O
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10 FeSO4 + 2 KMnO4 + 8 H2SO4 --> 5 Fe2(SO4)3 + 2 MnSO4 + K2SO4 + 8 H2O
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FeSO4 + KMnO4 + 8 H2SO4 --> 5 Fe2(SO4)3 + 2 MnSO4 + K2SO4 + 8 H2O
Correct Answer
A. 10 FeSO4 + 2 KMnO4 + 8 H2SO4 --> 5 Fe2(SO4)3 + 2 MnSO4 + K2SO4 + 8 H2O -
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Mar 21, 2022Quiz Edited by
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Mar 17, 2016Quiz Created by
MrCanning
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