1.

Explain the laboratory preparation of oxygen with hydrogen peroxide (H​​​​​​2​​​​​O​​​​2) and manganese dioxide (MnO​​​​2).

Answer» Explain the laboratory preparation of oxygen with hydrogen peroxide (H​​​​​​2​​​​​O​​​​2) and manganese dioxide (MnO​​​​2).


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