Предмет: Химия, автор: lobodzinska2000

допоможіть скласти формули сполук 
кальцій,калій,хлор+оксиген дякую

Ответы

Автор ответа: susha2001
0
2Ca+O2=2CaO
2K+O2=K2O
4Cl+7O2=2Cl2O7
Автор ответа: lobodzinska2000
0
дякую
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