Air Is a Pure Substance

question 89

True/False

Air is a pure substance.

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Definitions:

SAE Grade 8

A classification of bolts according to the Society of Automotive Engineers, indicating high tensile strength and used for critical, heavy-duty applications.

Angle Iron Brackets

Structural pieces made of metal shaped like an L, used to support or connect parts in constructions.

Bolting

The process of fastening parts together using bolts.

Uncoupling

The process of separating two components that were joined or connected, commonly used in the context of railcars or trailers.