The white quadrant of the NFPA 704 diamond indicates water reactivity.

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Multiple Choice

The white quadrant of the NFPA 704 diamond indicates water reactivity.

Explanation:
NFPA 704 uses four colored sections to convey hazard information at a glance: blue for health, red for flammability, yellow for reactivity, and white for special hazards. The white section is where special conditions are listed, such as water reactivity. That makes water reactivity the kind of hazard that belongs in the white quadrant, often shown with a symbol or letter to indicate this specific caution. The other colors carry numeric ratings of health, flammability, and reactivity, so they don’t describe water reactivity.

NFPA 704 uses four colored sections to convey hazard information at a glance: blue for health, red for flammability, yellow for reactivity, and white for special hazards. The white section is where special conditions are listed, such as water reactivity. That makes water reactivity the kind of hazard that belongs in the white quadrant, often shown with a symbol or letter to indicate this specific caution. The other colors carry numeric ratings of health, flammability, and reactivity, so they don’t describe water reactivity.

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