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Hazard
A danger associated with a substance.
Metalloid
An element that shares some properties with metals and some properties with non-metals.
Hazard symbols
Used to indicate how a substance is dangerous.
Symbols are useful because
They allow people of any language to communicate hazards to each other.
Corrosive hazard symbol
Indicates that a substance could damage your skin and can be found on the back of cleaning products.
Moderate hazard symbol
Allows people of any language to communicate hazards to each other.
Flammable hazard symbol
Indicates a moderate hazard; the substance is flammable and can be set on fire when exposed to heat.