During Which Phase of the Evolution of a Low-Mass Star

question 41

Multiple Choice

During which phase of the evolution of a low-mass star does it have two separate regions of nuclear burning occurring in its interior?

• A) pre-main sequence
• B) main sequence
• C) red giant
• D) horizontal branch
• E) white dwarf

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Definitions:

Anisole

A colorless liquid organic compound, essentially methoxybenzene, used in perfume and flavoring.

IUPAC

The International Union of Pure and Applied Chemistry, an organization responsible for standardizing chemical nomenclature.

Isopropyl

A hydrocarbon group or radical with the molecular formula C3H7, derived from propane by the removal of one hydrogen atom from the middle carbon.

Pent-2-ene

An unsaturated hydrocarbon with a double bond between the second and third carbon atoms in a five-carbon chain.