The feature of an experiment that is changed from one treatment to the next is referred to as a(n):

Variable

Explanation:

In the environment observed phenomena can be linked to a given set of possible outcomes. Thus, a variable can be understood as any quantity, quality or magnitude of a characteristic that can have several numerical values.

A variable can be understood as a classification or a measure; an amount that changes in each case or unit of study. A property in the study object that can be measured and enumerated, so the feature of an experiment that changes from one treatment to the next is called a variable.

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.