Question

which substance can be prepared with oxygen from water

Answer 1

Answer:

To make oxygen in the laboratory, hydrogen peroxide is poured into a conical flask containing some manganese(IV) oxide. The gas produced is collected in an upside-down gas jar filled with water. As the oxygen collects in the top of the gas jar, it pushes the water out...

Answer 2

Answer:

Oxygen can be made from hydrogen peroxide, which decomposes slowly to form water and oxygen. The rate of reaction can be increased by using a catalyst, manganese(IV) oxide. When manganese(IV) oxide is added to hydrogen peroxide, bubbles of oxygen are given off.

Explanation:

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