The carbonates of alkali metals are stable towards heat. OH-1 The hydroxides of Group 1 metals, and the heavier Group 2 3 (s) 2KNO 2 (s) + O 2 (g)Like with the carbonates of group 1, lithium nitrate is the exception behaving as most other nitrates. The carbonates get more soluble as you go down Group 1, but tend to get less soluble down Group 2. solubility : Nitrates of group -1 and group-2 metals are all soluble in water. The carbonates of alkaline earth metals also decompose on heating to form oxide and carbon dioxide. (ii) Carbonates. However, carbonate of lithium, when heated, decomposes to form lithium oxide. Water solubilities of group 2 nitrates at 0C in g/100gH2O are: Be(NO3)2 "very soluble," Mg(NO3)2 223, Ca(NO3)2 266, Sr(NO3)2 40, Ba(NO3)2 5. White crystalline solids with general formula MNO. Explaining the trends in Group 2 was difficult enough. Electronic configuration : ns1 ... Their solubility increases down the group since their lattice energy decreases more rapidly than their ... iii) Hydroxides, carbonates and nitrates of both Li and Mg decomposes on heating to yield respective oxide 2LiOH Li 2 O + H 2 O Group 1 nitrates. † Lithium compounds tend to be more covalent than comparable alkali metal compounds. 3. Solubility. (ii) Carbonates Thermal stability The carbonates of alkali metals are stable towards heat. Solubility Nitrates of both group 1 and group 2 metals are soluble in water. The carbonates of alkaline earth metals also decompose on heating to form oxide and carbon dioxide. 2)E.g. Comparing them with Group 1 is going to be even more difficult - particularly in the case of the carbonates, because the trends in the two Groups are in opposite directions. (ii) Carbonates. D is very nasty. 3.Very soluble in water. However, carbonate of lithium, when heated, decomposes to form lithium oxide. group. All other carbonates are insoluble. All carbonates are insoluble except those of the Group 1 elements and NH Solubility. The majority of compounds formed by group II elements are ionic.The balance between the attraction of oppositely charged ions to one another and the attraction of separate ions to water dictates the solubility of ionic compounds. Cl-1 All chlorides are soluble except: AgCl, PbCl2, and Hg2Cl2. Nitrate is a polyatomic ion with the chemical formula NO − 3. All chlorides are soluble except AgCl, Hg 2 Cl 2 and PdCl 2. Thermal stability. Salts containing this ion are called nitrates.Nitrates are common components of fertilizers and explosives. Solubility Rules and Common Ions Solubility Rules NO3-1 All nitrates are soluble. Most sulfates are soluble exceptions include SrSO 4, BaSO 4, PdSO 4 and CaSO 4 is slightly soluble. 2. !Lithium is the smallest of the alkali metals and has the highest charge density. That eliminates B All column 1 compounds are soluble. Thermal stabilities of nitrates of group-1 and group-2 metals increase on moving down the group from top to bottom. All nitrates are soluble. SOLUBILITY RULES 1. The carbonates of alkali metals are stable towards heat. (C is Not the answer). All column 1 and Ammonium ion are soluble. You don't have any way to eliminate it. 4. Nitrates of both group 1 and group 2 metals are soluble in water. That does C in. CO3-2 The carbonate of Group 1 metals and (NH4)2CO3 are soluble. 2KNO. !Thermal decomposition of ionic nitrates gives nitrites, but more covalent lithium nitrate decomposes to the oxide, similar to lead(II) nitrate. 1 GROUP -1 ( ALKALI METALS) 1. That lets out A Rule 1 says the nitrates are all soluble. The solubilities of these salts further increase on descending the group. They only decompose as far as the nitrite (MNO. Almost all inorganic nitrates are soluble in water.An example of an insoluble nitrate is Bismuth oxynitrate.Removal of one electron yields the nitrate radical, also called nitrogen trioxide NO The reason for low solubilities of strontium and barium nitrates seems to be similarity in size of Ba2+, Sr2+, and NO3- ions. SO4-2 All sulfates are soluble except: Ag2SO4, PbSO4, Hg2SO4, CaSO4, SrSO4, and BaSO4. Thermal stability. The carbonates of alkaline earth metals also decompose on heating to form oxide and carbon dioxide. However, carbonate of lithium, when heated, decomposes to form lithium oxide. But two metals as reactive as K and Ba won't combine by ionization. Harder to decompose on heating than most other metal nitrates. Nitrates of both group 1 and group 2 metals are soluble in water. Group 2 was difficult enough as K and Ba wo n't combine by ionization out A Rule 1 says nitrates... Sr2+, and BaSO4 soluble in water nitrates of both group 1 metals and. 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