Question

From the balanced chemical equations listed below, which equation best expresses the following word equation: Hydrogen gas plus oxygen gas yields water vapor plus energy?
2H2O (g) arrow 2H2 (g) + O2 (g) + energy
2H + O arrow 2HO + energy
2H2 (g) + O2 (g) arrow 2H2O (g) + energy
2H2 (g) + O2 (g) + energy arrow 2H2O (l)

Answer 1

\(\Huge\color{gold}{\star\star\star\star\star\star\hspace{7pt}}\LARGE\tt\color{orangered}{Hey\;there,}\hspace{2pt}\Huge\color{gold}{\star\star\star\star\star\star\star\star}\)\(\Huge\hspace{15pt}\tt\Huge\;\color{Blue}{welcome\;to\;openstudy!}\)\(\Huge\color{gold}{\star\hspace{1pt}\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star}\)

\(H\) = hydrogen
\(O\) = oxygen
\(H_2O\) = water
(g) = gaseous or vapor
(l) = liquid