Предмет: Химия, автор: Why

Ca + 2 H2O = Ca(OH)2 + H2 
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Автор ответа: Poliakova
0
Ca° + 2H₂⁺O = Ca²⁺(OH)₂ + H₂°

Са° - 2е = Са²⁺  Ι 2 Ι 1  окисление, восстановитель
2Н⁺ + 2е = Н₂°   Ι 2 Ι 1   восстановление, окислитель
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