Predicting+Reactions+-+Single+Replacement+Reactions

  __**Single Replacement Reactions **__ ** A + BX --> AX + B  **  A single replacement reaction is a chemical change where one element replaces the second element in a compound. ** EXAMPLE: ** Mg + HCl2 + H2    <span style="color: rgb(156, 72, 213);"> <span style="font-family: Tahoma,Geneva,sans-serif;"> To explain this example use the reality method. Mg is a girl, all positively charged elements are girls. H is positively charged thus it is also a girl. Cl is a boy because it is a negatively charged element. <span style="color: rgb(203, 144, 228);"> <span style="font-family: Georgia,serif;"><span style="color: rgb(0, 255, 0);">** EXAMPLE: ** <span style="font-size: 90%; font-family: Tahoma,Geneva,sans-serif;"><span style="color: rgb(255, 0, 187);">Mg=Girl (positive charge) H=Girl (positive charge) <span style="display: block; color: rgb(101, 181, 230); text-align: left;"> <span style="font-family: Georgia,serif;"><span style="font-size: 90%; font-family: Tahoma,Geneva,sans-serif;">Cl=<span style="color: rgb(103, 177, 228);">Boy (negative charge) <span style="color: rgb(255, 0, 187);">Mg + <span style="color: rgb(255, 0, 187);">H <span style="color: rgb(101, 181, 230);">CL -> <span style="color: rgb(255, 0, 187);">Mg Cl<span style="font-size: 80%; color: rgb(156, 72, 213);">2 + H<span style="font-size: 80%; color: rgb(156, 72, 213);">2 <span style="color: rgb(156, 72, 213);">Click [|here] for a visual of the example. <span style="color: rgb(203, 144, 228);"> <span style="color: rgb(156, 72, 213);"> <span style="color: rgb(203, 144, 228);"> <span style="color: rgb(156, 72, 213);"> <span style="color: rgb(156, 72, 213); font-family: Georgia,serif; background-color: rgb(255, 255, 255);"><span style="font-size: 90%; font-family: Tahoma,Geneva,sans-serif;">H and Cl are dating. However G also likes Mg. Mg is all alone and wants H's man, Cl. At the end of the day Cl dumps H for Mg. Now H is left alone and Mg and Cl are now a couple. <span style="color: rgb(203, 144, 228); font-family: 'Trebuchet MS',Helvetica,sans-serif; font-size: 130%;"> <span style="color: rgb(0, 255, 0);">Practice problems: <span style="color: rgb(203, 144, 228); font-family: 'Trebuchet MS',Helvetica,sans-serif;">1) Cu + AgNO3 --> ? 2) Fe + Cu(NO3)2 --> ? 3) Ca + H2O --> ?         <span style="color: rgb(203, 144, 228); font-family: 'Trebuchet MS',Helvetica,sans-serif;"><span style="color: rgb(203, 144, 228); font-family: 'Trebuchet MS',Helvetica,sans-serif; font-size: 130%;">4) Liquid Bromine is added to a container of sodium iodide crystals 5)  Zinc pellets are added to a sulfuric acid solution  6) A piece of copper is dropped into a container of water

Click here for the answers to the practice problems <span style="color: rgb(203, 144, 228);"><span style="color: rgb(203, 144, 228);"> <span style="color: rgb(156, 72, 213);"> <span style="color: rgb(156, 72, 213); font-family: Georgia,serif; background-color: rgb(255, 255, 255);"><span style="font-size: 90%; font-family: Tahoma,Geneva,sans-serif;">

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