Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[Q]: Molar masses can be used to determine the mass of a quantity of material.
[A]: What can be used to determine the mass of a quantity of material?


[Q]: The goal of proteomics is to identify or compare proteins expressed from a given genome under specific conditions, study the interactions between them, and use the information to predict cell behavior or develop drug targets.
[A]: The goal of proteomics is to identify or compare what substances expressed from a given genome under specific conditions, study the interactions between them, and use the information to predict cell behavior or develop drug targets?


[Q]: When an oxidation number of an atom is decreased in the course of a redox reaction, that atom is being reduced.
[A]:
When an oxidation number of an atom is decreased in the course of a redox reaction, that atom is being what?