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Why when preparing oxygen in the laboratory by using manganese (IV) oxide on hydrogen peroxide heat is not required ?​

Sagot :

Réponse:

Catalyst used is manganese dioxide, it increases the speed of decomposition of H2O2.

Hydrogen peroxide → Water + oxygen

The method of collecting oxygen is downward displacement of water.

The reasons for collecting oxygen:

It is slightly soluble in water

It is as heavy as air.