Korpa je prazna
Hydrogen sulphide
Hydrogen sulphide
In this lesson, you will learn about the characteristics of hydrogen sulphide.
Hemija
7 – 12. godina
Autor: Vámos-Poljak Zsolt
Lektor: Horváthné Kunstár Andrea
Grafičar: Sárai Kata
Oznake
mozaLink
/Veb-link