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Question

Balance the following equation:​

Zn + HNO3Zn(NO3)2+H2O+NO2

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Solution

The skeletal equation is:

Zn+HNO3Zn(NO3)2+H2O+NO2
  • To equalize oxygen and nitrogen, multiply HNO3 by 4 and NO2 by 2. Zn+4HNO3Zn(NO3)2+H2O+2NO2 [1 Mark]
  • To equalize hydrogen and oxygen, multiply H2O by 2. Zn+4HNO3Zn(NO3)2+2H2O+2NO2 [1 Mark]
Therefore, the balanced equation is:
Zn+4HNO3Zn(NO3)2+2H2O+2NO2 [1 Mark]

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