| Date | May 2017 | Marks available | 1 | Reference code | 17M.1.sl.TZ1.16 |
| Level | SL | Paper | 1 | Time zone | TZ1 |
| Command term | State | Question number | 16 | Adapted from | N/A |
Question
Copper catalyses the reaction between zinc and dilute sulfuric acid.
Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g)
Why does copper affect the reaction?
A. Decreases the activation energy
B. Increases the activation energy
C. Increases the enthalpy change
D. Decreases the enthalpy change
Markscheme
A
Examiners report
[N/A]
Syllabus sections
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