Задание 1: Дайте названия веществам
1) Na2CO3
2) No
3) Cr(OH)3
4) FeBr3
5) CrО3
6) PbO
7) Ba(OH)2
Задание 2: Напишите уравнения согласно схеме:
s->H2S -> S02 -> SO3-> Na2SO4 -> NaOH -> Na2SO3​
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