The Preparation of Oxygen by the Thermal Decomposition of Potassium

question 108

Short Answer

The preparation of oxygen by the thermal decomposition of potassium chlorate is shown below.
2 KClO₃(s)
2 KCl(s)+ 3 O₂(g)
In this reaction the atom that is reduced is ________,which undergoes an oxidation number change from ________ to ________.

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Definitions:

Posterior Pharynx

The rear part of the throat, extending from the nasopharynx and oropharynx down to the laryngopharynx.

Tonsils

Lymphatic tissue located at the back of the throat, part of the immune system to help fight infection.

Auditory Canal

The tubular part of the outer ear that leads from the pinna to the eardrum, conducting sound waves to the eardrum.

Examination Room

A room in a healthcare facility equipped for physical check-ups and medical examinations of patients.