consider these intermediate chemical equations.\nch₄(g) + 2o₂(g) → co₂(g) + 2h₂o(g)\n2h₂o(g) →…

consider these intermediate chemical equations.\nch₄(g) + 2o₂(g) → co₂(g) + 2h₂o(g)\n2h₂o(g) → 2h₂o(l)\nwhich overall chemical equation is obtained by combining these intermediate equations?\n\nch₄(g) + 2o₂(g) → co₂(g) + 4h₂o(g) + 2h₂o(l)\n\nch₄(g) + 2o₂(g) → co₂(g) + 2h₂o(l)\n\nch₄(g) + 2o₂(g) → co₂(g) + 6h₂o(g)\n\nch₄(g) + 2o₂(g) → co₂(g) + 2h₂o(g)

consider these intermediate chemical equations.\nch₄(g) + 2o₂(g) → co₂(g) + 2h₂o(g)\n2h₂o(g) → 2h₂o(l)\nwhich overall chemical equation is obtained by combining these intermediate equations?\n\nch₄(g) + 2o₂(g) → co₂(g) + 4h₂o(g) + 2h₂o(l)\n\nch₄(g) + 2o₂(g) → co₂(g) + 2h₂o(l)\n\nch₄(g) + 2o₂(g) → co₂(g) + 6h₂o(g)\n\nch₄(g) + 2o₂(g) → co₂(g) + 2h₂o(g)

Answer

Explanation:

Step1: Identify common species

The first equation is $\mathrm{CH}{4}(g)+2\mathrm{O}{2}(g)\rightarrow\mathrm{CO}{2}(g)+2\mathrm{H}{2}\mathrm{O}(g)$. The second equation is $2\mathrm{H}{2}\mathrm{O}(g)\rightarrow2\mathrm{H}{2}\mathrm{O}(l)$.

Step2: Combine equations

When we combine them, the $2\mathrm{H}{2}\mathrm{O}(g)$ in the first - equation and the $2\mathrm{H}{2}\mathrm{O}(g)$ in the second - equation cancel out.

Answer:

$\mathrm{CH}{4}(g)+2\mathrm{O}{2}(g)\rightarrow\mathrm{CO}{2}(g)+2\mathrm{H}{2}\mathrm{O}(l)$