Do an Atom Inventory for the Following: CO2 B(NO3)3 Activator Do an Atom Inventory for the Following: CO2 B(NO3)3

Synthesis Definition Two or more elements or compounds combine to make a more complex (larger) compound. Example A + B  AB 2Mg + O2  2MgO

Decomposition Definition Compounds (large) break down into two or more substances (smaller). Examples AB  A + B 2HgO  2Hg + O2

Single Replacement Definition Occurs when one element replaces another one in a compound. Examples AB + C  CB + A 3Pb +2H3PO4  Pb3(PO4)2 + 3H2

Double Replacement Definition Occurs when different atoms in two compounds trade places. Example AB + CD  CB + AD BaCl2 + Na2SO4  2NaCl + BaSO4

Balance and Identify the Following Reactions. __HCl + __NaOH → __H2O + __NaCl __Cl2 + __KBr  __KCl + __Br2 __Mg + __O2 → __MgO Double Replacement 2 2 Single Replacement 2 2 Synthesis

Balance and Identify the Following Reactions. __MgCO3 → __MgO + __CO2 __ Sb + __ O2  __ Sb4O6 __ S8 + __ O2  __ SO3 Decomposition 3 4 Synthesis 12 8 Synthesis

Balance and Identify the Following Reactions. __C4H8 + __ O2 → __ CO2 + __ H2O __ KNO3 → __ KNO2 + __ O2 __ AgNO3 + __ NaCl → __ NaNO3 + __ AgCl 6 4 4 Single Replacement 2 2 Decomposition Double Replacement

Activator – 11/6/2014 How can you tell the difference between synthesis and decomposition? How can you tell the difference between single replacement and double replacement?

Watch the movie and then complete the chart. Type of Reaction Definition  Equation Synthesis Decomposition Single Replacement Double Replacement Two or more elements or compounds combine to make a more complex substance A + B → AB AB → A + B Compounds break down into simpler substances Occurs when one element replaces another one in a compound AB + C → AC + B Occurs when different atoms in two different compounds trade places AB + CD → AC + BD A = Red B = Blue C = Green D = Yellow

Identifying Chemical Reactions 2. Use colored pencils to circle the common atoms or compounds in each equation to help you determine the type of reaction it illustrates. Use the code below to classify each reaction. S = Synthesis D = Decomposition SR = Single Replacement DR = Double Replacement   ____ P + O2 → P4O10 ____ Mg + O2 → MgO ____ HgO → Hg + O2 ____ Al2O3 → Al + O2 ____ Cl2 + NaBr → NaCl + Br2 ____ H2 + N2 → NH3

____ Na + Br2 → NaBr ____ CuCl2 + H2S → CuS + HCl   ____ HgO + Cl2 → HgCl + O2 ____ C + H2 → CH4 ____ KClO3  →   KCl  +  O2  ____ S8 + F2 → SF6 ____ BaCl2   +   Na2 SO4 →     NaCl   +   BaSO4

What is wrong with . . . H2 + O2  NaOH 2H2 + O2  2H2O

____ Na + ____ Cl2  ____ NaCl #1 Balance and Identify ____ Na + ____ Cl2  ____ NaCl

#2 Balance and Identify ____ H2O  ____ H2 + ____ O2

____ CaCO3  ____ CaO + ____ CO2 #3 Balance and Identify ____ CaCO3  ____ CaO + ____ CO2

#4 Balance and Identify ___ Cu + ___ AgNO3  ___ Ag + ___ Cu(NO3)2

___ K + ___ H2O  ___ H2 + ___ KOH #5 Balance and Identify ___ K + ___ H2O  ___ H2 + ___ KOH

___ Pb(NO3)2 + ___ KI  ___ PbI2 + ___ KNO3 #6 Balance and Identify ___ Pb(NO3)2 + ___ KI  ___ PbI2 + ___ KNO3

#7 Balance and Identify ___ CaCO3 + ___HCl  ___CaCl2 + ___ H2CO3

___ HCl + ___ NaOH → ___ H2O + ___ NaCl #8 Balance and Identify ___ HCl + ___ NaOH → ___ H2O + ___ NaCl

#9 Balance and Identify ___ Mg + ___ O2 → ___ MgO 

___ MgCO3 → ___ MgO + ___ CO2 #10 Balance and Identify ___ MgCO3 → ___ MgO + ___ CO2

#11 Balance and Identify ___ KNO3 → ___ KNO2 + ___ O2

#12 Balance and Identify ___AgNO3 + ___NaCl → ___NaNO3 + ___AgCl

#13 Balance and Identify ___ Ag + ___ S → ___ Ag2S

___ Cl2 + ___ KBr → ___ KCl + ___ Br2 #14 Balance and Identify ___ Cl2 + ___ KBr → ___ KCl + ___ Br2

#15 Balance and Identify ___ H2 + ___ O2  ___ H2O