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Chapter 8: Problem 39

Identify the type of reaction for each of the following. Then, predict products for the reaction, and balance the equation." reaction occurs, write "no reaction." $$ \begin{array}{l}{\text { a. water }+\text { lithium } \longrightarrow} \\\ {\text { b. silver nitrate + hydrochloric acid } \rightarrow} \\ {\text { c. hydrogen iodide } \rightarrow}\end{array} $$

Short Answer

Expert verified
a. This is a single displacement reaction that forms lithium hydroxide and hydrogen gas. The balanced chemical equation is \(2H_2O + 2Li \rightarrow 2LiOH + H_2\). b. This is a double displacement reaction that results in silver chloride and nitric acid. The balanced chemical equation is \(AgNO_3 + HCl \rightarrow AgCl + HNO_3\). c. Hydrogen iodide breaks down into hydrogen gas and iodine in a decomposition reaction. The balanced chemical equation is \(2HI \rightarrow H_2 + I_2\).

Step by step solution

01

Identify the Type of Reaction and Predict the Product(s)

a. Water + Lithium →\nThis is a single displacement reaction. Lithium is a metal that reacts with water to form a basic compound and hydrogen gas. Therefore, water will be replaced by lithium to form lithium hydroxide and hydrogen gas.b. Silver nitrate + Hydrochloric acid →\nThis is a double displacement reaction. Silver nitrate and hydrochloric acid will exchange ions to form new compounds. Therefore, the products will be silver chloride and nitric acid.c. Hydrogen iodide → \nThis is a decomposition reaction. Hydrogen iodide is a binary compound which consists of hydrogen and iodine. It decomposes into its elements when subjected to heat. Therefore, the products will be hydrogen gas and iodine.
02

Balance the Chemical Equations

a. \(2H_2O + 2Li \rightarrow 2LiOH + H_2\)\nIn this reaction, the number of atoms of each element in the reactants equates with that in the products.b. \(AgNO_3 + HCl \rightarrow AgCl + HNO_3\)\nIn this reaction also the number of atoms of each element in the reactants equals that in the product.c. \(2HI \rightarrow H_2 + I_2\)\nThis equation is balanced as the number of atoms of each element in the reactant equals that in the products.

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Most popular questions from this chapter

Calcium oxide, \(\mathrm{CaO}\) , is an ingredient in cement mixes. When water is added, the mixture warms up and calcium hydroxide, \(\mathrm{Ca}(\mathrm{OH})_{2}\) , forms. $$\begin{array}{l}{\text { a. Is there any evidence of a chemical }} \\\ {\text { reaction? }} \\ {\text { b. In the reaction above, how can you prove }} \\ {\text { that a chemical reaction has taken place? }}\end{array}$$

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How should each of the following substances be represented in a total ionic equation? $$\begin{array}{l}{\text { a. } \mathrm{KCl}(a q)} \\ {\text { b. } \mathrm{H}_{2} \mathrm{O}(l)} \\ {\text { c. } \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}(a q)} \\ {\text { d. } \mathrm{AgCl}(s)}\end{array}$$

Describe the trend in bond length as you move down the elements in Group 17 on the periodic table.
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