IOM 2021, Блиц — Задача 69
The Blitz-contest of IOM-2021
Условие
A red substance consists of two elements. It is soluble in aqueous ammonia, concentrated hydrochloric acid, and concentrated nitric acid. In the latter case, a brown gas is released and a blue solution is formed. Determine the substance, write down its chemical formula.
Отговори
- Cu2O
Решение
Chemistry(18). Answer: Cu2O
Оригинал в Архива: iom-2021-blitz-tasks-eng.pdf · официални решения: iom-2021-blitz-answers-eng.pdf