Which color placard indicates reactivity hazards?

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Multiple Choice

Which color placard indicates reactivity hazards?

Explanation:
Yellow signals reactivity hazards. In the common hazard placard system (NFPA 704), each color codes a different type of danger: blue for health, red for flammability, yellow for instability/reactivity, and white for special hazards. The yellow section warns that the chemical can become unstable or react violently under certain conditions, such as heat, shock, or when mixed with other substances. Knowing this color helps responders anticipate potential aggressive chemical behavior and handle the material with appropriate caution.

Yellow signals reactivity hazards. In the common hazard placard system (NFPA 704), each color codes a different type of danger: blue for health, red for flammability, yellow for instability/reactivity, and white for special hazards. The yellow section warns that the chemical can become unstable or react violently under certain conditions, such as heat, shock, or when mixed with other substances. Knowing this color helps responders anticipate potential aggressive chemical behavior and handle the material with appropriate caution.

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