WAEC - Chemistry (2022 - No. 28)
A hydrogen chloride gas reacted with oxygen gas to yield water and chlorine gas. The mole ratio of the hydrogen chloride gas to water is
1:3
2:1
3:1
4:1
Vysvětlení
4HCl + O\(_{2}\) -- 2Cl\(_{2}\) + 2H\(_{2}\)O
4:2 = 4/2
2:1
4:2 = 4/2
2:1