What else is produced during the replacement reaction of silver nitrate and potassium sulfate?
[tex]2 AgNO_3+K_2 SO_4 \rightarrow Ag_2 SO_4 +[/tex]
A. [tex]KNO _3[/tex]
B. [tex]2 KNO _3[/tex]
C. [tex]K _2[/tex]
D. [tex]2 AgNO _3[/tex]
Answer (2)
The reaction is a double replacement reaction between silver nitrate and potassium sulfate.
Balance the chemical equation: 2 A g N O 3 + K 2 S O 4 → A g 2 S O 4 + 2 K N O 3 .
Identify the missing product from the balanced equation.
The missing product is 2 K N O 3 .
Explanation
Understanding the Reaction The given reaction is a double replacement reaction between silver nitrate ( A g N O 3 ) and potassium sulfate ( K 2 S O 4 ). In a double replacement reaction, the cations and anions of two reactants switch places to form two new products.
Identifying Reactants and Products The reactants are 2 A g N O 3 and K 2 S O 4 . The products are silver sulfate ( A g 2 S O 4 ) and potassium nitrate ( K N O 3 ). To balance the equation, we need two moles of A g N O 3 to react with one mole of K 2 S O 4 to produce one mole of A g 2 S O 4 and two moles of K N O 3 .
Balancing the Equation The balanced chemical equation is: 2 A g N O 3 + K 2 S O 4 → A g 2 S O 4 + 2 K N O 3
Determining the Missing Product From the balanced equation, we can see that the missing product is 2 K N O 3 .
Examples
Double replacement reactions are commonly used in various chemical processes, such as water softening and precipitation reactions. For instance, in water softening, calcium ions ( C a 2 + ) are removed by adding sodium carbonate ( N a 2 C O 3 ), resulting in the formation of calcium carbonate ( C a C O 3 ), which precipitates out of the solution, and sodium ions ( N a + ) remain in the water. This process can be represented as: C a 2 + + N a 2 C O 3 → C a C O 3 + 2 N a + . Understanding double replacement reactions is crucial in many industrial and environmental applications.
The balanced reaction between silver nitrate and potassium sulfate produces silver sulfate and potassium nitrate. Specifically, the equation yields two moles of potassium nitrate, making the correct answer option B: 2 K N O 3 . This illustrates a typical double replacement reaction in chemistry.
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