Synthesis Reactions Also known as direct combination reactions.

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Presentation transcript:

Synthesis Reactions Also known as direct combination reactions. Two or more reactants form a single product. Generic Example: A + B  AB

Synthesis Reactions K+1 and Cl-1 Example: K + Cl2  2 2 KCl Remember to Balance!

Synthesis Reactions Al+3 and Br-1 Example: Al + Br2  2 3 2 AlBr3 Remember to Balance!

Decomposition Reactions A single reactant is broken down into two or more products. Generic Example: AB  A + B

Decomposition Reactions Diatomic!!! Example: NaCl  2 2 Na + Cl2 Remember to Balance!

Decomposition Reactions Diatomic!!! Example: Al2O3  2 4 Al + O2 3 Remember to Balance!

Single-Replacement Rxns A single element replaces an element in a compound to form a new compound and element. Generic Example: A + BX  AX + B Click here for a video that shows Ag replacing Cu

Single-Replacement Rxns You must use the Activity Series to determine if a reaction will work! Metals will replace other metals that appear below them (Pg. 295) [http://cwx.prenhall.com/bookbind/pubbooks/hillchem3/medialib/media_portfolio/text_images/CH04/FG04_15.JPG]

Single-Replacement Rxns Mg+2 and NO3-1 Mg + AgNO3 2 Mg(NO3)2 + Ag 2 Replaced Metal Mg is above Ag, so the reaction will work! [http://cwx.prenhall.com/bookbind/pubbooks/hillchem3/medialib/media_portfolio/text_images/CH04/FG04_15.JPG]

Single-Replacement Rxns “No Reaction” Cu + FeSO4 NR Cu is below Fe, so the reaction will NOT work! [http://cwx.prenhall.com/bookbind/pubbooks/hillchem3/medialib/media_portfolio/text_images/CH04/FG04_15.JPG]

Single-Replacement Rxns Non-metals will replace other non-metals that are below them on the periodic table. [http://www.avon-chemistry.com/ch9_chart11.jpg]

Single-Replacement Rxns K+1 and Cl-1 Cl2 + KI 2 2 KCl + I2 Diatomic! Cl is above I, so the reaction will work! [http://www.avon-chemistry.com/ch9_chart11.jpg]