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 + 2O*small 2 not 202*—> 2CO2

Respuesta :

Answer:

C) 2CO + O₂ →   2CO₂

Explanation:

The equation C is correct.

2CO + O₂ →   2CO₂

This equation have four oxygen atom and two carbon atoms on both side of equation. So it is correctly balanced.

All others are incorrect:

A) CO + O₂ →   CO₂

this is incorrect because there are three oxygen atoms on left while two atoms on right.

B) CO + 2O₂ →   2CO₂

this is incorrect because there are five oxygen atoms on left while four atoms on right.

D)  2CO + 2O₂ →   2CO₂

this is incorrect because there are six oxygen atoms on left while four atoms on right.