Question

describe a method of preparing oxygen without using a source of heat

Answer 1

Oxygen can be prepared in a number of ways in the laboratory.

hydrogen peroxide, H2O2 using manganese(IV) oxide - this does not require heating.

Answer 2

Answer:

Explanation:

Oxygen can be prepared in a number of ways in the laboratory.

hydrogen peroxide, H2O2 using manganese(IV) oxide - this does not require heating.