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1. 14b. Chemical Changes L2 [2026] - Mr AA
2. 14b. Chemical Changes L2 [2026] - Ms PS
![14b. Chemical Changes L2 [2026] - Mr AA](https://edutv.sg/public/uploads/17742676135383.png)
![14b. Chemical Changes L2 [2026] - Ms PS](https://edutv.sg/public/uploads/17742676134292.png)