Chemistry, 24.10.2021 14:00 officialrogerfp3gf2s

Pls help I don’t understand: Which of these is a balanced chemical reaction? A) CO + O2–>CO2

B) CO + 2O2–> 2CO2

C) 2CO + O2—> 2CO2

D) 2CO + 2Osmall 2 not 202—> 2CO2

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Pls help I don’t understand: Which of these is a balanced chemical reaction? A) CO + O2–>CO2