Type the correct answer in each box. Which chemical symbols will complete the equation for this single displacement reaction? [tex]2 NaBr+Cl_2 \rightarrow 2 \square \square+\square 2[/tex]
Answer (2)
Chlorine displaces bromine in sodium bromide.
The products are sodium chloride ( N a Cl ) and bromine ( B r 2 ).
The balanced chemical equation is 2 N a B r + C l 2 → 2 N a Cl + B r 2 .
The missing chemical symbols are N a Cl and B r .
Explanation
Understanding the Reaction The problem presents a single displacement reaction where chlorine ( C l 2 ) reacts with sodium bromide ( N a B r ). In a single displacement reaction, one element replaces another in a compound. Here, chlorine will displace bromine from sodium bromide.
Identifying the Products The general form of a single displacement reaction is: A + BC → A C + B . In this case, A is C l 2 , B is B r , and C is N a . Therefore, the products will be sodium chloride ( N a Cl ) and bromine ( B r 2 ).
Writing the Balanced Equation Now, let's write the balanced chemical equation: 2 N a B r + C l 2 → 2 N a Cl + B r 2 . This equation shows that two molecules of sodium bromide react with one molecule of chlorine to produce two molecules of sodium chloride and one molecule of bromine.
Filling in the Blanks Comparing the balanced equation 2 N a B r + C l 2 → 2 N a Cl + B r 2 with the given incomplete equation 2 N a B r + C l 2 → 2 □□ + □ 2 , we can fill in the blanks. The first blank should be N a Cl and the second blank should be B r .
Examples
Single displacement reactions are commonly used in various industrial processes, such as the extraction of metals from their ores. For example, copper can be extracted from copper sulfate solution by adding iron. The iron displaces the copper, forming iron sulfate and precipitating out solid copper. This principle is also used in water purification, where certain metals are displaced by less reactive ones to remove impurities.
The missing chemical symbols for the single displacement reaction are sodium chloride ( N a Cl ) and bromine ( B r ). The complete balanced equation is 2 N a B r + C l 2 → 2 N a Cl + B r 2 . These products are formed as chlorine displaces bromine in sodium bromide.
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