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Zn 2+ + 2 OH − → Zn(OH) 2. The initial colorless solution contains the zincate ion: Zn(OH) 2 + 2 OH − → Zn(OH) 4 2−. Zinc hydroxide will dissolve because the ion is normally surrounded by water ligands; when excess sodium hydroxide is added to the solution the hydroxide ions will reduce the complex to a −2 charge and make it soluble.
The Zn(2) site is coordinated by three OH groups, and one Cl atom in a tetrahedral geometry [Zn(OH) 3 Cl]. The [Zn(OH) 6] octahedra form an edge-sharing dioctahedral sheet similar to that observed in dioctahedral micas. On each site of the vacant octahedron, a [Zn(OH) 3 Cl] tetrahedron is attached to three anions of the sheet and points away ...
In the binuclear ion [Co 2 (OH 2) 10] 4+ each bridging water molecule donates one pair of electrons to one cobalt ion and another pair to the other cobalt ion. The Co-O (bridging) bond lengths are 213 picometers, and the Co-O (terminal) bond lengths are 10 pm shorter. [10] The complexes [Mo 2 (H 2 O) 8] 4+ and [Rh 2 (H 2 O) 10] 4+ contain metal ...
Consider the following reaction for example: CO + NO 2 → CO 2 + NO. In this case, experiments have determined that this reaction takes place according to the rate law = []. This form suggests that the rate-determining step is a reaction between two molecules of NO 2. A possible mechanism for the overall reaction that explains the rate law is ...
A coenzyme is a “helper” molecule that binds to an enzymes to help carry out a chemical reaction. In this case, NAD helps the mitochondria in the cell "keep the gears running" in the reaction ...
A person was arrested after attempting to climb a temporary fence near the White House this morning, according to a U.S. Secret Service spokesperson. The Secret Service said the person was ...
No. 16 Miami lost the Pop-Tarts Bowl to No. 19 Iowa State on Saturday, a game that produced a thrilling 42-41 result in favor of the Cyclones.. Heisman Trophy finalist Cam Ward was brilliant in ...
A metal ion in aqueous solution or aqua ion is a cation, dissolved in water, of chemical formula [M(H 2 O) n] z+.The solvation number, n, determined by a variety of experimental methods is 4 for Li + and Be 2+ and 6 for most elements in periods 3 and 4 of the periodic table.