Compare the solubility and thermal stability of the following compounds of the alkali metals with those of the alkaline earth metals. Sulphates of both group 1 and group 2 metals are stable towards heat. 1) The sulphate of alkaline earth metal are all white solids. Answer : Nitrates , carbonates and sulphates of Alkali metals are soluble in water . Like alkali metals, these are s-block elements, and have two electrons in the valence shell in s-orbital. In group1,it is found that the thermal stability of hydroxides,carbonates,nitrates sulphates etc. Thermal Stability is the decomposition of a compound on heating. Sulphates of alkali metals are soluble in water. The Nuffield Data Book quotes anyhydrous beryllium sulfate, BeSO 4, as insoluble, whereas the hydrated form, BeSO 4.4H 2 O is soluble, with a solubility of about 39 g of BeSO 4 per 100 g of water at room temperature. Contents Foreword Preface Thesulfates A.Introduction B.Phasetransitions C.Density D.Decompositionequilibria E.Kineticsofthermaldecomposition Units,symbols,andabbreviations SO 3,SO 2,andO 2 Aluminum Americium Antimony Barium Beryllium Bismuth Cadmium Calcium Cerium Cesium Chromium Cobalt

As we move down group 1 and group 2, the thermal stability of nitrate increases. Solution : (i) Nitrates Thermal stabilityNitrates of alkali metals, except , decompose on strong heating to form nitrites. Thermal stability of alkali metal hydrides and carbonates (1 answer) Closed 1 year ago. M + H 2 SO 4 ——> MSO 4 + H 2. Insoluble. Insoluble. Properties. Sulphates. Hydrides liberate hydrogen at anode on electrolysis. All the bicarbonates (except which exits in solution) exist … Active 12 months ago. But, experimentally, order is reverse. Ask Question Asked 3 years, 3 months ago. Fairly soluble. So, solubility should decrease from Li to Cs. Soluble. 11 $\begingroup$ Why is it that thermal stability of alkali metal hydrides decreases down the group, but for carbonates, it increases? MO + H 2 SO 4 ———–> MSO 4 + H 2 O. Viewed 12k times 12.

, on decomposition, gives oxide.

Similar to lithium nitrate, alkaline earth metal nitrates also decompose to give oxides. Thermal stability of alkali metal hydrides and carbonates. The sulphates of alkaline earth metal are prepared by the action of sulphuric acid on metals, metal oxides ,hydroxides and carbonates. Li 2 CO 3 → Li 2 O +CO 2 MgCO 3 → MgO + CO 2 Na 2 CO 3 → No action The stability of carbonates and bicarbonates increases down the group. The carbonates of alkaline earth metals and Lithium carbonate decompose on heating to form oxides with the evolution of CO2. thermal stability decreases and heat of formation decreases down the group. Therefore they are used as ... bicarbonates, sulphates, nitrates, etc. From Li to Cs, due to larger ion size, hydration enthalpy decreases. Alkali metals constitute the 1 group in periodic table. Thermal stability. From Li to Cs, thermal stability of carbonates increases. However, sulphates of alkaline earth metals show varied trends. 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