In your set:
Laboratory:
1. Flask
2. Laboratory Beaker
3. Safety glasses
4. Pasteur pipette
5. Glass rod
6. Spatula
7. Test tubes
8. Test tube rack
9. Petri dish
10. Funnel
11. Tile
12. Metal stand for dry fuel
13. Gloves

And:
14. Cup for draining
15. Bottle with hydrogen peroxide
16. Bottle with copper sulfate (sulfato de cobre)
17. Bottle with citric acid (ácido cítrico)
18. Bottle with dry fuel (combustible seco)
19. Bottle with sodium thiosulfate (tiosulfato de sodio)
20. Bottle with potassium iodide (yoduro de potasio)
21. Evidence: 3 pieces