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bulgar [2K]
3 years ago
13

What is manganese dioxide in preparation of oxygen?

Chemistry
1 answer:
Levart [38]3 years ago
5 0

Answer:

When manganese(IV) oxide is added to hydrogen peroxide, bubbles of oxygen are given off. 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.

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lutik1710 [3]
<h3> <u>ANSWER</u></h3>

2. Neon, only

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