1. Kalanchoe tomentosa

2. Is an Aloe, but I can’t really see it clearly to tell which species. My first guess would be Aloe juvenna. It could be entirely something else, but as for I am certain it is an Aloe.

3. Some sort of Echeveria or Echeveria hybrid like a Sedeveria.

4. Faucaria tigrina

5. Same as #3

6. This one is a Senecio like Ewwmayo had suggested with your first two pics. There’s a few species that have a very similar look. I think with some growth it’ll be easier to tell which species your have. The Senecio I numbered six could possibly be possibly be Senecio vitalis.

7. I think this one is some sort of chubby leaved Sedum.

8. Cremnosedum ‘Liitle Gem’

9. Crassula perfotata aka String of Buttons

10. Graptopetalum paraguayense aka Ghost plant

11. Same as #6, but this one I don’t think is Senecio vitalis. I do think this one is a Senecio, but looks like a different species from #6.

12. Hard to tell because it is covered in soil, but looks to be an Echeveria.

13. This one is too covered to get an id, but possibly an Echeveria or even a Sempervivum.

14. Crassula ovata cv. Hobbit

15. Crassula ‘Springtime’

16. Another one that’s hard to see, but possibly Echeveria harmsii.

17. Aeonium ‘Kiwi’

18. It’s either Tradescantia sillamontana or Cyanosis somaliensis, another one that’s too covered in soil to really see what’s goin on.

19. Andromischus cristatus

20. The only cactus in the bunch. I keep repeating myself but this one is hard to really tell what it is. I can say it’s either Hatiora salicornioides or some sort of Rhipsalis. Hatiora and Rhipsalis are not arid type cacti, but are “jungle” type cactus. They are epiphytes and come from Central, South America, and the Caribbean. So all day sun exposure and low water will not make for a happy Hatiora or Rhipsalis.