Examlex
In the analysis of variance, the blocks mean square is equal to the sum of the squared deviations between each block sample mean and the grand mean, multiplied by the number of observations made for each block, multiplied by the number of observations per cell (which may well equal 1).
HBr
Stands for Hydrogen bromide, a compound that is often used in organic synthesis to convert alcohols into alkyl bromides.
Reagent
A material or mixture introduced into a system to initiate a chemical reaction or to check if a reaction takes place.
Transformation
A process of changing the chemical structure or physical form of a substance.
Organic Chemistry
The branch of chemistry concerned with the study of carbon-containing compounds, their reactions, and properties.
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