1)H2O2=O2=P2O5(+H2O)=?
2)KMnO4=O2=CaO(+H2O)=?
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вопрос

1) The complete balanced reaction for the decomposition of hydrogen peroxide (H2O2) into oxygen (O2) and phosphorus pentoxide (P2O5) with the addition of water (H2O) is:
2 H2O2 --> 2 H2O + O2 + P2O5

2) The reaction for the reduction of potassium permanganate (KMnO4) to oxygen (O2) and calcium oxide (CaO) with the addition of water (H2O) is:
2 KMnO4 + 5 CaO + 8 H2O --> K2O + 2 MnO2 + 5 Ca(OH)2 + 8 O2.