Examlex
Based on your knowledge of electronegativities determine whether the bonds between the following pairs of atoms are ionic,polar covalent or nonpolar covalent:
A) F-F
B) Cs-Br
C) N-S
Double-blind
A study design in which neither the participants nor the experimenters know who is receiving a particular treatment, to prevent bias in the results.
Attention Deficit Disorder
A mental health disorder characterized by a persistent pattern of inattention and/or hyperactivity-impulsivity that interferes with functioning or development.
Control Drug
Control Drug often refers to a regulated substance whose manufacture, possession, and use are governed by law due to the potential for abuse or harm.
Central Tendency
A statistical measure that identifies a single value as representative of the middle or center of a distribution of data.
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