Question

Elements and compounds are called pure substances because they have a unique set of chemical and physical __________ ?

Answer 1

Answer:

Elements and compounds are called pure substances because they have a unique set of chemical and physical properties

Answer 2

Pure substances are elements and compounds that have a distinct set of chemical and physical properties.

Explanation:

• A pure substance is a material that contains only one substance. Pure substances are further subdivided into elements and compounds.
• Pure substances include all elements and compounds. A pure material is defined as stuff with a set composition and defined properties in chemistry.

Pure Substance Characteristics and Properties

• In nature, pure substances are generally homogeneous, with only one type of atoms or molecules.
• The majority of these compounds have a consistent or homogeneous makeup throughout.
• The boiling and melting points of the chemicals are fixed.
• In most cases, a pure substance participates in a chemical process to produce predictable results.