Jan 3, 2016 · The electron configuration of "Co"^(3+) is ["Ar"] 4s 3d^5. "Co" is in Period 4 of the Periodic Table, and "Ar" is the preceding noble gas. Cobalt is also in Group 9, so it must have 9 valence electrons. The valence shell configuration is therefore 4s^2 3d^7, and the core notation is bb"Co": ["Ar"] 4s^2 3d^7 When a transition metal forms an ion, the s electrons are removed …

Oct 22, 2015 · The carbon is fully oxidized. Therefore, it is C, IV^+. The sum of the formal oxidation numbers in an a complex or compound ion must sum to the charge of the ion. Here the charge is -2. Oxygen typically has an oxidation number of -II, and it does here. So 3 xx -2 + C_(ON) = -2. And what therefore is C_(ON)? What is the oxidation number of carbon in …

Jul 30, 2018 · H_2SO_4 + X CO_3 == H_2O + CO_2 + X SO_4 The positive ion on the Carbonate is unstated, so it is represented by X. The Hydrogen ion on the Sulfuric Acid combines with Carbonate to break the Carbonate down into water and Carbon Dioxide.

Oct 30, 2015 · The answer is 3 May i recommend a video () Let’s consider the Lewis structure of the carbonate ion, CO32‐ . The correct Lewis structure for this ion has one carbon‐oxygen double bond, and two carbon‐oxygen single bonds. Each of the singly bonded oxygen atoms bears a formal charge of ‐1 and all other atoms are neutral. But which of the three oxygens forms the …

Dec 19, 2015 · The carbonate dianion MUST have 2 more electrons than it does nuclear protons. Let's see if it does. The number of nuclear protons are the number of positively charged particles contained in atomic nuclei. Z, the atomic number, =6 for carbon, and 8 for oxygen. In the carbonate atom nuclei there are therefore 30 positively charged protons. So how many …

Oct 4, 2017 · The carbonate dianion is CO_3^(2-) Now, clearly, the ion must contain 2 more electrons, than it does nucular charges.....in one formula unit of CO_3^(2-) there are 6_C+3xx8_O=30*"positively charged nuclear particles". And thus there MUST be 32 electrons conceived to whizz about the nuclei. And their presence is clear from the Lewis structure of …

Dec 12, 2016 · "CuCO"_3 The formula of the carbonate anion: "CO"_3^(2-) The charge of the carbonate anion: 2- The charge of copper(II): 2+ This means that the copper 2+ ion and the carbonate ion can balance out as a compound.

Feb 18, 2016 · Considering poor solubility of CaCO_3(s) a probable explanation may be given as follows Calcium carbonate is poorly soluble in pure water (47 mg/L) Ksp = 3.7×10−9 to 8.7×10−9 at 25^oC there exist an ionic equilibrium with the ions formed due to ionization of soluble calcium carbonate. CaCO_3(s) ⇌CO_3(soln) ⇌ Ca^(2+)(aq) + CO_3^(2−)(aq) Now in presence of …

Jul 28, 2016 · The important thing to recognize here is the fact that you're dealing with two polyatomic ions, one which acts as cation and one which acts as anion.

Jan 27, 2017 · This is a carbonate ion. A resonance structure means that there are more than one way to draw the ion. First, determine the total number of electrons available: 1 Carbon - 4 3 Oxygen - 6(3) = 18 And the charge of -2 gives you an additional 2 electrons. Hence, there are 24 electrons in total (4+18+2=24) Carbon would be in the middle which gives you However, note …