* Understanding Oxygen Release: When a substance releases oxygen upon heating, it usually means the substance contains oxygen in its chemical structure and that heating breaks those bonds, releasing oxygen as a gas.
* Common Examples:
* Metal Oxides: Many metal oxides (like mercuric oxide, HgO) decompose upon heating to produce oxygen gas and the corresponding metal.
* Peroxides: Peroxides (like hydrogen peroxide, H₂O₂) also release oxygen upon heating.
* Chlorates: Chlorates (like potassium chlorate, KClO₃) decompose to release oxygen, a common method for laboratory oxygen production.
* Substances That Don't Release Oxygen:
* Substances Without Oxygen: Compounds that don't contain oxygen in their chemical structure won't release it upon heating. For example, sodium chloride (NaCl) or sugar (C₁₂H₂₂O₁₁) won't release oxygen.
To answer your question specifically, you need to know the options you're given. Please provide the list of substances, and I can help you determine which one doesn't release oxygen upon heating.
