The overall chemical equation resulting from the sum of the following three steps is 2C(s)+ 2H₂O(g)→ 2CO(g)+ 2H₂(g) CO(g)+ H₂O(g)→ CO₂(g)+ H₂(g) CO(g)+ 3H₂(g)→ CH₄(g)+ H₂O(g) A)2C(s)+ 2H₂O(g)→ CO₂(g)+ CH₄(g) B)2C(s)+ 3H₂O(g)→ CO(g)+ CO₂(g)+ 3H₂(g) C)2C(s)+ H₂O(g)+ H₂(g)→ CO(g)+ CH₄(g) D)2CO(g)+ 2H₂(g)→ CH₄(g)+ CO₂(g) E)2C(s)+ CH₄(g)+ 3H₂O(g)→ 3CO(g)+ 5H₂(g)

Question

Quizplus · Accepted Answer

The equation for each step involves the formation or consumption of CO₂ and/or CH₄, and these two compounds are the only ones that appear in the final equation. Therefore, the best choice is the one that shows the formation of both CO₂ and CH₄ from C and H₂O. Choice A is the only one that satisfies this requirement.

The Overall Chemical Equation Resulting from the Sum of the Following