Control group definition

the standard to which comparisons are made in an experiment. a typical use of control group is an experiment in which the affect of a treatment is unknown and comparisons between the control group and the experimental group are used to measure the effect of the treatment.

Explanation:

(Hope this helps a bit)

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.

hammurabi rulers

good lesson