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Reaction Except where otherwise noted, ... Barium hydride is a chemical compound with the chemical formula BaH 2. [1] Preparation and structure
Reactions of barium hydroxide with ammonium salts are strongly endothermic. The reaction of barium hydroxide octahydrate with ammonium chloride [ 18 ] [ 19 ] or [ 20 ] ammonium thiocyanate [ 20 ] [ 21 ] is often used as a classroom chemistry demonstration, producing temperatures cold enough to freeze water and enough water to dissolve the ...
Pages in category "Barium compounds" ... Barium hexafluorosilicate; Barium hydride; Barium hydroxide; Barium hypochlorite; Barium iodate; Barium iodide; Barium manganate;
Binary hydrogen compounds in group 1 are the ionic hydrides (also called saline hydrides) wherein hydrogen is bound electrostatically. Because hydrogen is located somewhat centrally in an electronegative sense, it is necessary for the counterion to be exceptionally electropositive for the hydride to possibly be accurately described as truly behaving ionic.
Barium chloride is an inorganic compound with the formula Ba Cl 2. It is one of the most common water-soluble salts of barium . Like most other water-soluble barium salts, it is a white powder, highly toxic, and imparts a yellow-green coloration to a flame.
Water-reactive substances [1] are those that spontaneously undergo a chemical reaction with water, often noted as generating flammable gas. [2] Some are highly reducing in nature. [3] Notable examples include alkali metals, lithium through caesium, and alkaline earth metals, magnesium through barium.
The reaction of CaH 2 with water can be represented as follows: CaH 2 + 2 H 2 O → Ca(OH) 2 + 2 H 2. The two hydrolysis products, gaseous H 2 and Ca(OH) 2, are readily separated from the dried solvent. Calcium hydride is a relatively mild desiccant and, compared to molecular sieves, probably inefficient. [7]
Barium reacts with ammonia to form the electride [Ba(NH 3) 6](e-) 2, which near room temperature gives the amide Ba(NH 2) 2. [11] The metal is readily attacked by acids. Sulfuric acid is a notable exception because passivation stops the reaction by forming the insoluble barium sulfate on the surface. [12]