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Химия

QuestionAnswer
Центральная часть атома ядро
Какой газ является самым легким? водород
Почему срез яблока постепенно начинает желтеть? происходит процесс окисления содержащегося в яблоке железа
Как называется неделимая частица? атом
В какой воде меньше содержание примесей: дождевой, морской, минеральной? дождевой
Какой химический элемент преобладает в составе каменного угля? углерод
Created by: aselazhikenova
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