Is promethium an alkali metal? Why is AlCl3 a Lewis acid? Why is LiHMDS such a strong base relative to hydroxide ion? What characterizes a strong acid or base? What is the difference between an alkali and a base? How many protons are in a lithium atom? Is sodium chloride an amorphous...
Silver cations are consideredLewis acids. A Lewis acid is described in the Lewis acid-base theory as a substance that can accept an electron pair to... Learn more about this topic: Lewis Acid & Base | Definition & Examples from Chapter 16/ Lesson 19 ...
(a) In AlCl(3),Al has only six electron in its valence shell. It is an electron deficient species. Therefore, it acts as a Lewis acid (electron acceptor) (b) In BF(3) boron has a vacant 2p-orbital and fluorine has one 2p-completely filled unutilised or
- Conclusion: FeCl3 acts as a Lewis acid. Step 3: Analyze AlCl3 (Aluminum Chloride)- Valence Electrons: Aluminum has 3 valence electrons, and with 3 Cl atoms, AlCl3 has a total of 6 valence electrons.- Octet: Aluminum also has an incomplete octet.- Vacant Orbitals: AlCl3 can accept ...
Using the Folin-Ciocalteu method for phenolic content, and the AlCl3 method for flavonoid and flavonol content, the extracts' compositions were determined. Seven assays were used to determine antioxidant activity: the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method, the galvinoxyl free radical scavenging...
Resveratrol inhibited AlCl3-induced expression and release of TNF-α, IL-6, and iNOS in rat brain. Conclusions These findings establish a role for APE1 as a master regulator of AlCl3 dependent inflammatory responses in rat brain. In addition, there was an ameliorative change with resveratrol ...
·PF5).9 The geometries for two conformations of HAlCl4, cis and trans, the conjugated base AlCl42 and also for the Lewis acid AlCl3 have been fully optimised (Table 1) by using the 3-21G(*) basis set followed by vibrational analyses at the same level.All stationary points were found...
Given the reaction 3 CuCl2 (aq) + 2 Al (s) --> 2 AlCl3 (aq) + 3 Cu(s). Which species is oxidized? Which one is reduced? 8. What process occurs in an oxidation-reduction (redox) reaction? What happens to the species that is oxidized? What happens...
When an acid or base dissolves in water, the net pH of the solution changes. It is determined by the increase or decrease in the concentration of hydrogen ions. If the hydrogen ion concentration is reduced, the solution is basic.Answer and Explanation: ...
Compounds of formula (IA) or (IB) or a salt, N-oxide, hydrate or solvate thereof are inhibitors of HSP90, and are of value in the treatment of diseases responsive to HSP90 inhibition such as cancers. In the formulae, Ar is an aryl, aryl(C1-C6 alkyl), aryl(C1-C6 alkyl), heteroar...