Electron configuration of Ca(OH)2?
956604
Try it out in the lewis-dot diagram\n      ..        ..\nH-O-Ca-O-H\n      ..        ..
826844
H\n |    \nC=O:  (You need 2 lone pairs on Oxygen)\n |   \nH\n\nIt doesnt get much better than that :)
512622
Ca(OCl)2 as far as i rem being taught in chemistry....U should have paid attention in ur class.....
452173
the short answer is valence shell electrons.
937026
thank you for this question (I love hybridization questions)\nFirst: ClO2 ??? Actually this is an ion → ClO2 -\nO= 6e-*2 = 12e-\nCl= 7e-*1= 7e-\n+1e-\ntotal= 20e-\nHowever, they all need an octet\n3*8e- = 24e-\n24e- - 20 e- = 4e-/2 = 2 simple bonds\nCl is the central atom, therefore, it must bond twice (one with each O)\ntherefore you require two semifilled orbitals\nNeutral Cl:\n[Ne]-(↑↓)-(↑↓)(↑↓)(↑_)\n-----3s2-///----3p5-----\nCl atom has 7 valence shell electrons by itself, so when it bonds it does one coordinated bond of the two it does, this means Cl looses one of its valence shell electron and gives it to one O atom: now it has 6 and not 7 valence electrons. So we have to check the orbitals again (with Cl atom without one 1 electron)\n[Ne]-(↑↓)-(↑↓)(↑_)(↑_)\n-----3s2-///----3p4------\nNow we have the 2 semifilled orbitals we needed!!\nNow hybridize\n[Ne]-(↑↓)(↑↓)(↑_)(↑_)\n----///--------sp3--------\nThe 2 filled orbitals are the 2 non-bonding pairs of electrons of Cl atom\nThen, your answer is sp3, with a an angular molecular geometry (just like water)
942601
2 (OH-) minus 2 e- = H2O + [O]....we have removed the a e- from each hydroxide(OH-) to give H20 and [O], this [O] shown in square brackets denotes nascent oxygen, which is produced during the reaction, this combines with another nascent oxygen to give us oxygen molecule O2\n\nhence a better reaction would be multiiplies the above by 2 \n\n4 (OH-) minus 4 e- = 2H2O + O2 balanced!
1025655
Think of the net ionic equation which is occuring.\nSince both the HCl and Ca(OH)3 are dissolved in aqueous solution, broken into ions, just focus on the H+ and OH- part of it first.\n\nH+(aq) + OH-(aq) --> H2O(l)\nThe Hydronium ion and the Hydroxide ion react to form water.\nWhat is left over are the Ca+2 and Cl- ion which drop out of the net ionic eqaution since they form the very soluble compound, Calcium Chloride (CaCl2).\n\n2 HCl (aq) + Ca(OH)2 (aq) --> 2 H2O (l) + CaCl2 (aq)
263276
You mean the electron configuration?\n\n1s2\n2s2 2p6\n3s2 3p4
738963
As in sodium and potassium - Group I and magnesium and calcium - Group II?\nIf you look at the arrangement of the electrons that an atom of the above elements has:\nNa: 11, arranged as 2,8,1\nK: 19, arranged as 2,8,8,1\nBoth Na and K have 1 electron in their most outer shell. Hence they are in the 1st column, or Group I.\nMg: 12, arranged as 2,8,2\nCa: 20, arranged as 2,8,8,2\nBoth Mg and Ca have 2 electrons in their most outer shell. Hence they are in the 2nd column, or Group II.\n\nHope this helps :)
884578
Electron configuration of Magnesium:\n[Ne] 3s2\n\nThus it has 2 valence electrons.
1024314
well, not an analytical fan myself, but here is what I know\n\n1) one strong and board absorption bend at 3650-3200 cm^-1 indicates -OH functional group\n\n2) No peaks just above 3000 cm^-1, no sp2 carbon\n\n3) peaks just right of 3000 cm^-1 indicates saturated carbon chain\n\n4) one peak, sharp, right of 1400 cm^-1 indicates methyl group.
751019
The bond strength between calcium and oxygen in calcium oxide is greater. This is because in calcium oxide, calcium has given two electrons to oxygen. The ions would thus be Ca2+ and O2-. The K-F ionic bond is formed by the giving of only one electron to fluorine from potassium and is thus weaker.
869137
2H3PO4 + 3Ba(OH)2 ---> 6H2O + Ba (PO4)2 +  2Ba
417185
Carbon (C), Hydrogen (H), and Oxygen (O)
391116
2Ca(s) + O2(g) -> 2CaO(s)
248591
CaO + H2O => Ca(OH)2\n\ncalcium oxide + water => calcium hydroxide\n\nThis is a great site for this - the reaction between CaO and water is an exothermic reaction (1)\n\nthe second reference is even better - not simply a diagram but a torn apart "self-heating" can\n\ngood luck!\n\nSomething else you might want to looking - MRE's (meals ready to eat)
951534
Ca(OH)2 + H2SO4 = 2H2O + CaSO4\n\n1 + 1 + 2 + 1 = 5