Предмет: Химия, автор: itmy731

СРОЧНО!!!! хімічні реакції взаємодії з киснем таких речовин, Ca, Zn, Si, Cu, B, C

Ответы

Автор ответа: uraproskurnak053

1

2Са+О2=2Сао

2Zn+O2=2ZnO

Si+O2=SiO2

2Cu+O2=2CuO

4B+3O2=2B2O3

C+O2=CO2

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