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ICSE Class 10 Chemistry 2022 Paper

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Complete and balance the following chemical equations :
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Question : 20 of 55
Marks: +1, -0
  CH4+O2  [excess]  →\; \mathrm{CH}_4 + \mathrm{O}_2 \; \text{[excess]} \; \rightarrow
Solution:  
  CH4+2O2  (excess)  →CO2+2H2O\; \mathrm{CH}_4 + 2\mathrm{O}_2 \; \text{(excess)} \; \rightarrow \mathrm{CO}_2 + 2\mathrm{H}_2\mathrm{O}
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