Differentiation of the Earth's Iron Core and Collisions of Planetesimals

question 41

Multiple Choice

Differentiation of the Earth's iron core and collisions of planetesimals caused early Earth to

• A) glow brighter than the Sun.
• B) be much cooler than at present.
• C) be much hotter than at present.
• D) be much more oblong than at present.

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Definitions:

Cyclohexane

A saturated hydrocarbon with the molecular formula \(C_6H_{12}\), consisting of a ring of six carbon atoms, and is often used as a nonpolar solvent in chemistry.

Alkyl Substituents

Alkyl substituents are groups of carbon and hydrogen atoms attached to a molecule, derived from alkanes by removing one hydrogen atom.

Axial

A term used in chemistry to describe positions in a molecule that are parallel to the axis of symmetry, often referring to substituents in cyclic compounds.

Energy Conformation

The arrangement of the atoms in a molecule that reflects a particular state of energy, particularly in a context where molecules may assume different shapes or orientations.