August 2021 0 17 Report
20 БАЛЛОВ!!!!! ПОМОГИТЕ ПОЖАЛУЙСТА
Осуществите цепочку превращений:
SiO 2 →Si→Na 2 SiO 3 →H 2 SiO 3 →SiO 2 →К 2 SiO 3
Please enter comments
Please enter your name.
Please enter the correct email address.
You must agree before submitting.

Copyright © 2024 SCHOLAR.TIPS - All rights reserved.