Write the molecular equation, complete ionic equat...

Question

Write the molecular equation, complete ionic equation, and Net ionic equation for the following:

(a) Cadmium chloride+sodium sulfide

Molecular equation-----

Complete ionic equation----

Net ionic equation------

Jules Bruno · Accepted Answer

We’re being asked to identify the Molecular equation, Complete ionic equation and Net ionic equation when Cadmium chloride+sodium sulfide are mixed together.We’re going to determine the spectator ions using the following steps:Step 1. Write the overall balanced reactionStep 2. Write the total or full ionic equationStep 3. Identify the spectator ionsStep 4. Identify net ionic equationStep 1. Write the overall balanced reactionReactants:• Cadmium chloride → CdCl₂(aq) → aqueous → will break up into its ions▪ Cd2+ ▪ Cl → Group 7A → -1 charge → Cl-[readmore]• sodium sulfide → Na2S(aq) → aqueous → will break up into its ions▪ Na → Group 1A → +1 charge → Na+▪ S → Group 6A → -2 charge → S2-Reaction:▪ double displacement reaction → the positive ions (cations) and the negative ions (anions) of the two reactants will swap or switch places*criss cross the charges of the cation and anion and that would be the subscript of each ionWe will refer to the solubility rules in order to determine if the product form would be an insoluble salt (precipitate) or not.Solubility Rules:•Soluble Ionic Compounds:▪ Group 1A ions (Li+, Na+, K+, etc.) and Ammonium ion (NH4+) are soluble▪ Nitrates (NO3-), Acetates (CH3COO- or C2H3O2-), and most Perchlorates (ClO4-) are soluble▪ Cl-, Br-, and I- are soluble except when paired with Ag+, Pb2+, Cu+, Hg22+▪ Sulfates (SO42-) are soluble except those of Ca2+, Sr2+, Ba2+, Ag+, and Pb2+•Insoluble Ionic Compounds:▪ Hydroxides (OH-) and Sulfides (S2-) are insoluble except when with Group 1A ions (Li+, Na+, K+, etc.) and ammonium ion (NH4+) and Ca2+, Sr2+, Ba2+▪ Carbonates (CO32-) and Phosphates (PO43-) are insoluble except when with Group 1A ions (Li+, Na+, K+, etc.) and ammonium ion (NH4+)Products:• Cd2+ + S2- → CdS▪ Sulfides (S2-) are insoluble except when with Group 1A ions (Li+, Na+, K+, etc.) and ammonium ion (NH4+) and Ca2+, Sr2+, Ba2+▪ CdS → insoluble → precipitate (solid)• Na+ + Cl- → NaCl▪ Cl-, Br-, and I- are soluble except when paired with Ag+, Pb2+, Cu+, Hg22+▪ NaCl → soluble → aqueousThe Balanced Molecular equation is :        CdCl₂(aq) + Na2S(aq) → CdS(s) +  2 NaCl(aq)Step 2: Write the total or full ionic equation• soluble ionic compounds separate and become ions in the chemical equation• compounds that are aqueous can break up into ions• insoluble compounds (solids, liquids, and gases) will not break up the solutionCdCl₂(aq) + Na2S(aq) → CdS(s) +  2 NaCl(aq)▪ CdCl₂(aq) → Cd2+(aq) + 2 Cl-(aq)▪ Na2S(aq) → 2 Na+(aq) + S2-(aq)▪  2 NaCl(aq)  → 2 Na+(aq)+ 2 Cl-(aq)The Total Ionic Equation is :Cd2+(aq) + 2 Cl-(aq)  + 2 Na+(aq) + S2-(aq)  → CdS(s)  + 2 Na+(aq)+ 2 Cl-(aq)Step 3. Identify the spectator ionsSpectator ions:▪ species present on both reactant and product side▪ they should have the same state, same phase, same charge▪ these species are not really participating in the reaction and they are “floating around” the solutionCd2+(aq) + 2 Cl-(aq)  + 2 Na+(aq) + S2-(aq)  → CdS(s)  + 2 Na+(aq)+ 2 Cl-(aq) The net Ionic equation is Cd2+(aq) + S2-(aq)  → CdS(s)

Problem: Write the molecular equation, complete ionic equation, and Net ionic equation for the following:(a) Cadmium chloride+sodium sulfideMolecular equation-----Complete ionic equation----Net ionic equation------

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Problem Details

Problem: Write the molecular equation, complete ionic equation, and Net ionic equation for the following:(a) Cadmium chloride+sodium sulfideMolecular equation-----Complete ionic equation----Net ionic equation------

FREE Expert Solution

Problem Details

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