Oxidizers supply their own oxygen.

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Multiple Choice

Oxidizers supply their own oxygen.

Explanation:
An oxidizer is a substance that provides oxygen to support combustion. The reason this description fits best is that the role of an oxidizer in a fire is to donate oxygen so the fuel can burn, even if atmospheric oxygen is limited. This means many oxidizers release oxygen from their own structure or decompose to release oxygen gas, enabling combustion to continue. They aren’t about absorbing oxygen from the air, nor about decomposing water to drive flames, nor about cooling flames. Examples include nitrates, chlorates, peroxides, and other oxygen-containing compounds.

An oxidizer is a substance that provides oxygen to support combustion. The reason this description fits best is that the role of an oxidizer in a fire is to donate oxygen so the fuel can burn, even if atmospheric oxygen is limited. This means many oxidizers release oxygen from their own structure or decompose to release oxygen gas, enabling combustion to continue. They aren’t about absorbing oxygen from the air, nor about decomposing water to drive flames, nor about cooling flames. Examples include nitrates, chlorates, peroxides, and other oxygen-containing compounds.

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