A.Hypotheses always become theories after a study is complete. b. Hypotheses are specific predictions used to test a theory's prediction. c. Theories are specific predictions used to test a theory's prediction. d. Hypotheses are formulated after a research study and later made into theories.

a.Hypotheses always become theories after a study is complete.

Explanation:

Hypothesis is a statement or group of statements which predicts the cause of an event or phenomena. This is based on the observation. This is required to be proved with the help of a scientific methodology.

When the hypothesis get proved using the scientific methodology, it becomes the part of scientific theory.

A scientific theory is the explanation of the cause of the event or the phenomena. This is supported by the evidences that are obtained by the experimentation procedures.

some molecules react differently than others, and this difference in reactivity can be used to separate substances in a mixture.

typically, this kind of separation is used to separate enantiomers of chiral compounds. chiral compounds are compounds that have no superimposable mirror images of one another, and the enantiomers are the different versions of these compounds.

when separating enantiomers (which have identical chemical properties), you must first change them into diastereomers by reacting them with a pure enantiomer of another compound. these diastereomers will have different physical properties, making them much easier to sepa