A. Group 1 elements are more reactive than the group 2 elements because they have more valence to lose. B. Lithium is the least reactive element in group, because its What are the elements that make up Group 18 in the periodic table? What is t...
What is the most reactive nonmetallic chemical element? What is the most metallic element? What is high ionization energy? What is the fourth element on the periodic table? What is the electron configuration for lithium? Which of the first 20 elements in the periodic table are metal and which...
Thus, racemate 1 was separated into its enantiomers 1a and 1b, with subsequent tests demonstrating that 1a is the physiologically relevant enantiomer (hLH-R ∼17 times, rLH-R ∼12 times more active than 1b). We were able to obtain diffracting crystals of a closely related derivative of...
There are described water-soluble fiber-reactive dye-stuffs which possess a triazinylamino radical to which is bonded as second substituent an amino group or an N-containing heterocyclic group which, bonded via an arylene, alkylene or aralkyl radical, possesses a fiber-reactive grouping of the vin...
The reactive dyes represented by formulas I and II are used in the form of a free acid or a salt, particularly an alkali metal salt or an alkaline earth metal salt, more particularly a sodium salt, a potassium salt or a lithium salt. To obtain a liquid composition, a lithium salt is ...
Examples of such salts are the salts with a base, such as alkali metal salts like the lithium salt, sodium salt and potassium salt, alkaline earth metal salts like the magnesium salt, calcium salt and barium salt, and amino acid salts like the glycine salt, lysine salt, arginine salt, ...
The reactive dyes represented by formulas I and II are used in the form of a free acid or a salt, particularly an alkali metal salt or an alkaline earth metal salt, more particularly a sodium salt, a potassium salt or a lithium salt. To obtain a liquid composition, a lithium salt is ...
The periodic table is an arrangement of elements into various horizontal rows called periods and vertical columns called groups in the increasing order of their atomic numbers. There are four blocks of elements;s,p,d,andf-block. Some elements are metals...
Which substance in each of the following pairs is more reactive as a nucleophile? Explain. (a) (CH_3)_2N^- or (CH_3)_2NH. (b) (CH_3)_3B or (CH_3)_3N. (c) H_2O or H_2S. What ester and Grignard rea...
one-piece molded article. The RIM processes usually involve a rapid reaction between one or more reactive components such as polyether- or polyester-polyol, polyamine, or other material with an active hydrogen, and one or more isocyanate—containing constituents, often in the presence of a catalyst...