Open Question
Complete the exercises below. An aqueous solution of SO₂ reduces a. aqueous KMnO₄ to MnSO₄ (aq) b. acidic aqueous K₂Cr₂O₇ to aqueous Cr⁵⁺, c. aqueous Hg₂(NO₃)₂ to mercury metal. Write balanced equations for these reactions.
Ch.22 - Chemistry of the Nonmetals
Chapter 22, Problem 47
Complete the exercises below. Write a balanced equation for each of the following reactions: a. Sulfur dioxide reacts with water. b. Solid zinc sulfide reacts with hydrochloric acid. c. Elemental sulfur reacts with sulfite ion to form thiosulfate. d. Sulfur trioxide is dissolved in sulfuric acid.
Verified step by step guidance1
Identify the reactants and products for each reaction. For example, in reaction (a), the reactants are sulfur dioxide (SO_2) and water (H_2O), and the product is sulfurous acid (H_2SO_3).
Write the unbalanced chemical equation for each reaction. For reaction (a), it would be: SO_2 + H_2O → H_2SO_3.
Balance the chemical equation by ensuring the number of atoms of each element is the same on both sides of the equation. For reaction (a), the equation is already balanced: SO_2 + H_2O → H_2SO_3.
Repeat the process for reaction (b): Identify reactants (ZnS and HCl) and products (ZnCl_2 and H_2S), write the unbalanced equation: ZnS + HCl → ZnCl_2 + H_2S, and balance it.
Continue with reactions (c) and (d) by identifying reactants and products, writing unbalanced equations, and balancing them. For example, for reaction (c), the unbalanced equation is S + SO_3^{2-} → S_2O_3^{2-}.
Related Practice
Open Question
Complete the exercises below. Write the Lewis structure for each of the following species, and indicate the structure of each: a. SeO₃²⁻; b. S₂Cl₂; c. chlorosulfonic acid, HSO₃Cl (chlorine is bonded to sulfur).
Open Question
Complete the exercises below. The SF₅⁻ ion is formed when SF₄ (g) reacts with fluoride salts containing large cations, such as CsF(s). Draw the Lewis structures for SF₄ and SF₅⁻, and predict the molecular structure of each.
Open Question
Complete the exercises below. Write a balanced equation for each of the following reactions. a. Hydrogen selenide can be prepared by the reaction of an aqueous acid solution on aluminum selenide. b. Sodium thiosulfate is used to remove excess Cl₂ from chlorine-bleached fabrics. The thiosulfate ion forms SO₄²⁻ and elemental sulfur, while Cl₂ is reduced to Cl⁻.
Open Question
Complete the exercises below. Write the chemical formula for each of the following compounds, and indicate the oxidation state of nitrogen in each: a. sodium nitrite, b. ammonia, c. nitrous oxide, d. sodium cyanide, e. nitric acid, f. nitrogen dioxide, g. nitrogen, h. boron nitride.
Open Question
Complete the exercises below. Write the Lewis structure for each of the following species, describe its geometry, and indicate the oxidation state of the nitrogen: a. HNO₂, b. N₃⁻, c. N₂H₅⁺, d. NO₃⁻.