Question

reactions w and x are basically the same chemical reaction. one utilizes an enzyme and the other does not. analyze the graph. which of the following statements accurately explains the difference between reactions w and x? reaction w occurs only at room temperature. reaction w requires more energy. reaction x does not utilize an enzyme. reaction x takes longer to come to completion.

Explanation:

Enzymes are biological catalysts that speed up reactions by lowering the activation - energy barrier. Since reaction W uses an enzyme and reaction X does not, reaction X which lacks the enzyme will generally proceed more slowly and take longer to come to completion. There is no indication in the problem that reaction W occurs only at room temperature. Also, reaction W with the enzyme should require less energy due to the enzyme's catalytic effect. And we know from the problem that one reaction uses an enzyme and the other does not, but the key difference shown by the graph's rate of reaction is the time to completion.

Answer:

Reaction X takes longer to come to completion.