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5R) The net ionic equation for formation of an aqueous solution of Nil2 accompanied by evolution of CO2 gas via mixing solid NICO3 and aqueous hydriodic acid is, A) 2NICO3 (s) + HI (aq) – 2H20 (1) + CO2 (g) + 2N12+ (aq) B) NICO3 (9) + I- (aq) → 2H2O (1) + CO2 (g) + Ni2* (aq) + HI (aq) ) NICO3 (s) + 2H* (aq) → H2O (1) + CO2 (g) + Ni2+ (aq) 2H20 (1) + CO2 (g) + Nil2 (aq) - H20 (1) + CO2 (g) + Ni2+ (aq) + 21- (aq) D) NICO3 (s) + 2HI (aq) E) NICO3 (s) + 2HI (aq) Answer C

5R) The net ionic equation for formation of an aqueous solution of Nil2 accompanied by evolution of CO2 gas via mixing solid NICO3 and aqueous hydriodic acid is, A) 2NICO3 (s) + HI (aq) – 2H20 (1) + CO2 (g) + 2N12+ (aq) B) NICO3 (9) + I- (aq) → 2H2O (1) + CO2 (g) + Ni2* (aq) + HI (aq) ) NICO3 (s) + 2H* (aq) → H2O (1) + CO2 (g) + Ni2+ (aq) 2H20 (1) + CO2 (g) + Nil2 (aq) - H20 (1) + CO2 (g) + Ni2+ (aq) + 21- (aq) D) NICO3 (s) + 2HI (aq) E) NICO3 (s) + 2HI (aq) Answer C

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**Net Ionic Equation for Formation of Aqueous NiI2 and CO2 Evolution** **Question:** The net ionic equation for the formation of an aqueous solution of NiI2 accompanied by the evolution of CO2 gas via mixing solid NiCO3 and aqueous hydroiodic acid is ________. **Options:** A) 2NiCO3(s) + HI(aq) → 2H2O(l) + CO2(g) + 2Ni2+(aq) B) NiCO3(s) + I-(aq) → 2H2O(l) + CO2(g) + Ni2+(aq) + HI(aq) C) NiCO3(s) + 2H+(aq) → H2O(l) + CO2(g) + Ni2+(aq) D) NiCO3(s) + 2HI(aq) → 2H2O(l) + CO2(g) + NiI2(aq) E) NiCO3(s) + 2HI(aq) → H2O (l) + CO2(g) + NiI2(aq) + I2-(aq) **Correct Answer: C** **Explanation:** The correct net ionic equation represents the reaction of nickel(II) carbonate (NiCO3) with hydrogen ions (H+) from hydroiodic acid (HI), resulting in the formation of water (H2O), carbon dioxide (CO2), and nickel(II) ions (Ni2+). The H+ ions originate from the dissociation of HI in aqueous solution, but the iodine ions (I-) are spectator ions and do not participate in the net ionic equation. **Details of the Reaction:** - Nickel(II) carbonate (NiCO3) is a solid reactant. - Hydroiodic acid (HI), which provides H+ ions in aqueous solution. - The primary products include water (H2O in liquid state), carbon dioxide (CO2 in gaseous form), and nickel(II) ions in aqueous solution (Ni2+(aq)). This reaction highlights the typical process of a carbonate reacting with an acid to produce water and carbon dioxide, alongside the soluble nickel ions in the aqueous phase.
Transcribed Image Text:**Net Ionic Equation for Formation of Aqueous NiI2 and CO2 Evolution** **Question:** The net ionic equation for the formation of an aqueous solution of NiI2 accompanied by the evolution of CO2 gas via mixing solid NiCO3 and aqueous hydroiodic acid is ________. **Options:** A) 2NiCO3(s) + HI(aq) → 2H2O(l) + CO2(g) + 2Ni2+(aq) B) NiCO3(s) + I-(aq) → 2H2O(l) + CO2(g) + Ni2+(aq) + HI(aq) C) NiCO3(s) + 2H+(aq) → H2O(l) + CO2(g) + Ni2+(aq) D) NiCO3(s) + 2HI(aq) → 2H2O(l) + CO2(g) + NiI2(aq) E) NiCO3(s) + 2HI(aq) → H2O (l) + CO2(g) + NiI2(aq) + I2-(aq) **Correct Answer: C** **Explanation:** The correct net ionic equation represents the reaction of nickel(II) carbonate (NiCO3) with hydrogen ions (H+) from hydroiodic acid (HI), resulting in the formation of water (H2O), carbon dioxide (CO2), and nickel(II) ions (Ni2+). The H+ ions originate from the dissociation of HI in aqueous solution, but the iodine ions (I-) are spectator ions and do not participate in the net ionic equation. **Details of the Reaction:** - Nickel(II) carbonate (NiCO3) is a solid reactant. - Hydroiodic acid (HI), which provides H+ ions in aqueous solution. - The primary products include water (H2O in liquid state), carbon dioxide (CO2 in gaseous form), and nickel(II) ions in aqueous solution (Ni2+(aq)). This reaction highlights the typical process of a carbonate reacting with an acid to produce water and carbon dioxide, alongside the soluble nickel ions in the aqueous phase.
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