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Chapter 8: Problem 32

Complete and balance the equation for each of the following synthesis reactions. $$ \begin{array}{ll}{\text { a. } Z n+O_{2} \longrightarrow} & {\text { c. } C l_{2}+K \longrightarrow} \\ {\text { b. } F_{2}+M g \rightarrow} & {\text { d. } H_{2}+I_{2} \longrightarrow}\end{array} $$

Short Answer

Expert verified
The balanced equations for the synthesis reactions are: a. \(Zn + O_2 \longrightarrow ZnO\), b. \(F_{2} + Mg \longrightarrow MgF_{2}\), c. \(Cl_{2} + 2K \longrightarrow 2KCl\), d. \(H_{2} + I_{2} \longrightarrow 2HI\).

Step by step solution

01

Balancing the first equation

In the first reaction, a Zinc atom \(Zn\) combines with oxygen molecule \(O_{2}\), forming Zinc Oxide \(ZnO\). To balance the equation, it remains as \(Zn + O_2 \longrightarrow ZnO\) because 1 atom of Zinc reacts with 1 molecule of Oxygen to produce Zinc Oxide.
02

Balancing the second equation

In the second reaction, a Fluorine molecule \(F_{2}\) reacts with a Magnesium atom \(Mg\) to form Magnesium Fluoride \(MgF2\). To balance this equation, it becomes \(F_{2} + Mg \longrightarrow MgF_{2}\), ensuring that 2 atoms of Fluorine react with 1 atom of Magnesium to produce Magnesium Fluoride.
03

Balancing the third equation

The third reaction involves a Chlorine molecule \(Cl_{2}\) reacting with Potassium \(K\) to form Potassium Chloride \(KCl\). The balanced equation for this reaction is \(Cl_{2} + 2K \longrightarrow 2KCl\). This indicates that 2 Potassium atoms are required to react with 1 Chlorine molecule to form 2 Potassium Chloride molecules.
04

Balancing the fourth equation

The final reaction involves Hydrogen \(H_{2}\) combining with Iodine \(I_{2}\) to form Hydrogen Iodide \(HI\). To balance the equation, it changes to \(H_{2} + I_{2} \longrightarrow 2HI\), indicating that the output includes 2 Hydrogen Iodide molecules.

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Most popular questions from this chapter

The following equations are incorrect in some way. Identify and correct each error, and then balance each equation. $$\begin{array}{l}{\text { a. } \mathrm{Li}+\mathrm{O}_{2} \rightarrow \mathrm{LiO}_{2}} \\ {\text { b. } \mathrm{MgCO}_{3} \rightarrow \mathrm{Mg}+\mathrm{C}+3 \mathrm{O}_{2}} \\ {\text { c. } \mathrm{NaI}+\mathrm{Cl}_{2} \rightarrow \mathrm{NaCl}+\mathrm{I}} \\ {\text { d. } \mathrm{AgNO}_{3}+\mathrm{CaCl}_{2} \rightarrow \mathrm{Ca}\left(\mathrm{NO}_{3}\right)+\mathrm{AgCl}_{2}} \\ {\text { e. } 3 \mathrm{Mg}+2 \mathrm{FeBr}_{3} \rightarrow \mathrm{Fe}_{2} \mathrm{Mg}_{3}+3 \mathrm{Br}_{2}}\end{array}$$

Write an unbalanced chemical equation for each of the following. $$\begin{array}{l}{\text { a. Aluminum reacts with oxygen to produce }} \\\ {\text { aluminum oxide. }} \\ {\text { b. Phosphoric acid, } \mathrm{H}_{3} \mathrm{PO}_{4} \text { , is produced }} \\ {\text { through the reaction between tetraphosphorus}} \\ {\text { decoxide and water. }}\end{array}$$

Write a balanced equation, including all of the appropriate notations, for each of the following reactions. $$ \begin{array}{l}{\text { a. Steam reacts with solid carbon to form }} \\\ {\text { the gases carbon monoxide and hydrogen. }} \\ {\text { b. Heating ammonium nitrate in aqueous }} \\ {\text { solution forms dinitrogen monoxide gas }} \\ {\text { and liquid water. }} \\ {\text { c. Nitrogen dioxide gas forms from the }} \\ {\text { reaction of nitrogen monoxide gas and }} \\\ {\text { oxygen gas. }}\end{array} $$

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

Write an unbalanced formula equation for each of the following. Include symbols for physical states in the equation. $$\begin{array}{c}{\text { a. solid zinc sulfide + oxygen gas } \longrightarrow} \\ {\text { solid zinc oxide + sulfur dioxide gas }} \\\ {\text { b. aqueous hydrochloric acid + solid }} \\ {\text { magnesium hydroxide } \longrightarrow \text { aqueous }} \\ {\text { magnesium chloride + liquid water }}\end{array}$$
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