Roadside Memorials

question 42

Multiple Choice

Roadside memorials

• A) began after the great rail disaster of 1929.
• B) are a 21^st century phenomenon.
• C) have a long history.
• D) are state mandated farewells to workers killed in the line of duty.

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Definitions:

Equilibrium Constant

A numerical value that expresses the ratio of the concentrations of products and reactants of a chemical reaction at equilibrium.

HA

Often shorthand for hydroxyapatite, a mineral form of calcium apatite; can also refer to hyaluronic acid or other context-specific chemical compounds.

Equilibrium

A state in which opposing forces or influences are balanced, often used in chemistry to describe reactions where reactants and products are formed at the same rate.

Products

Substances formed as a result of a chemical reaction, appearing on the right side of a chemical equation.