At a constant temperature and pressure, 80 cm3 of carbon monoxide gas reacts completely with 40 cm3 of oxygen gas to produce 80 cm3 of a gaseous carbon oxide.
Which equation represents this reaction?
CO(g)+O2(g)→CO3(g)\text{CO(g)} + \text{O}_2\text{(g)} \rightarrow \text{CO}_3\text{(g)}CO(g)+O2(g)→CO3(g)
4CO(g)+O2(g)→2C2O3(g)4\text{CO(g)} + \text{O}_2\text{(g)} \rightarrow 2\text{C}_2\text{O}_3\text{(g)}4CO(g)+O2(g)→2C2O3(g)
2CO(g)+O2(g)→2CO2(g)2\text{CO(g)} + \text{O}_2\text{(g)} \rightarrow 2\text{CO}_2\text{(g)}2CO(g)+O2(g)→2CO2(g)
2CO(g)+3O2(g)→2CO4(g)2\text{CO(g)} + 3\text{O}_2\text{(g)} \rightarrow 2\text{CO}_4\text{(g)}2CO(g)+3O2(g)→2CO4(g)
