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__________ Comparisons Compare One Group to Itself in Another Setting;

question 82

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__________ comparisons compare one group to itself in another setting; __________ comparisons compare two groups in the same setting.


Definitions:

Ionic Formula

A notation that represents the composition of an ionic compound by showing the ratio of ions present in the compound.

Compound

A substance formed from two or more chemical elements chemically bonded together, with a fixed ratio determining its composition.

Fe2+

Ferrous ion, a form of the iron ion where iron has a valency of +2, commonly involved in redox reactions and an essential part of hemoglobin.

Oxygen

A chemical element with symbol O and atomic number 8, essential for respiration of living organisms and combustion processes.

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