DP Chemistry (last assessment 2024)
Question 19N.3.hl.TZ0.a(i)
| Date | November 2019 | Marks available | [Maximum mark: 1] | Reference code | 19N.3.hl.TZ0.a(i) |
| Level | hl | Paper | 3 | Time zone | TZ0 |
| Command term | State | Question number | a(i) | Adapted from | N/A |
a(i).
[Maximum mark: 1]
19N.3.hl.TZ0.a(i)
Red supergiant stars contain carbon-12 formed by the fusion of helium-4 nuclei with beryllium-8 nuclei.
Mass of a helium-4 nucleus = 4.002602 amu
Mass of a beryllium-8 nucleus = 8.005305 amu
Mass of a carbon-12 nucleus = 12.000000 amu
State the nuclear equation for the fusion reaction.
[1]
Markscheme
✔
NOTE: Do not penalize missing atomic numbers.
