Textbook Question
Using the activity series (Table 4.5), write balanced chemical equations for the following reactions. If no reaction occurs, write NR. (d) hydrogen gas is bubbled through an aqueous solution of nickel(II) chloride
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Ch.4 - Reactions in Aqueous Solution
Chapter 4, Problem 56b,c
Using the activity series (Table 4.5), write balanced chemical equations for the following reactions. If no reaction occurs, write NR. (b) a solution of zinc nitrate is added to a solution of magnesium sulfate (c) hydrochloric acid is added to gold metal
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Identify the reactants in the given solutions: zinc nitrate (Zn(NO_3)_2) and magnesium sulfate (MgSO_4).
Determine the possible products of the reaction: zinc sulfate (ZnSO_4) and magnesium nitrate (Mg(NO_3)_2).
Use the activity series to compare the reactivity of zinc and magnesium. Zinc is less reactive than magnesium.
Since zinc is less reactive than magnesium, it cannot displace magnesium from magnesium sulfate. Therefore, no reaction occurs.
Write the final conclusion: NR (No Reaction).
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Activity Series
The activity series is a list of metals ranked by their ability to displace other metals from compounds in solution. Metals higher in the series can displace those lower from their compounds, which is crucial for predicting whether a reaction will occur when two metal solutions are mixed.
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02:02
Activity Series Chart
Double Displacement Reaction
A double displacement reaction occurs when two compounds exchange ions to form two new compounds. This type of reaction is common in aqueous solutions and can be represented by the general formula AB + CD → AD + CB, where A and C are cations and B and D are anions.
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01:11Single Displacement Reactions
Solubility Rules
Solubility rules help predict whether a compound will dissolve in water. For example, most nitrates are soluble, while many sulfates are not. Understanding these rules is essential for determining if a precipitate will form during a reaction, which influences the overall reaction outcome.
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Related Practice
Textbook Question
Using the activity series (Table 4.5), write balanced chemical equations for the following reactions. If no reaction occurs, write NR. (e) aluminum metal is added to a solution of cobalt(II) sulfate.
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Textbook Question
Using the activity series (Table 4.5), write balanced chemical equations for the following reactions. If no reaction occurs, write NR. (a) Nickel metal is added to a solution of copper(II) nitrate
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Textbook Question
Using the activity series (Table 4.5), write balanced chemical equations for the following reactions. If no reaction occurs, write NR. (d) chromium metal is immersed in an aqueous solution of cobalt(II) chloride
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Textbook Question
Using the activity series (Table 4.5), write balanced chemical equations for the following reactions. If no reaction occurs, write NR. (e) hydrogen gas is bubbled through a solution of silver nitrate.
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Textbook Question
The metal cadmium tends to form Cd2+ ions. The following observations are made: (i) When a strip of zinc metal is placed in CdCl2(aq), cadmium metal is deposited on the strip. (ii) When a strip of cadmium metal is placed in Ni(NO3)(aq), nickel metal is deposited on the strip. (a) Write net ionic equations to explain each of the preceding observations.