A _____ Is an Element That the Experimenter Expects to Change

question 40

Multiple Choice

A _____ is an element that the experimenter expects to change, vary, or that can have several different values, whereas a _____ is a factor that does not change and remains consistent.

• A) constant; script
• B) variable; level
• C) variable; constant
• D) constant; variable

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Definitions:

(2R,3S)-2,3-dibromobutane

A specific enantiomer of 2,3-dibromobutane characterized by a particular spatial arrangement of its atoms, as detailed by its R and S descriptors.

Chiral

Describes a molecule that cannot be superimposed on its mirror image, often leading to different chemical behaviors for each form.

Achiral

Describes a molecule that is superimposable on its mirror image, lacking chirality and, therefore, lacking enantiomers.

Diastereomers

Stereoisomers which are not reflections of one another and possess distinct physical and chemical characteristics.