Presentation on theme: "J Unit 3 Chemical Reactions 3.4 How do we use the Activity Series Table to predict if a reaction will take place? February 8, 2010 Do Now: Balance equations."— Presentation transcript:
J Unit 3 Chemical Reactions 3.4 How do we use the Activity Series Table to predict if a reaction will take place? February 8, 2010 Do Now: Balance equations if needed. Then, indicate whether the reaction is synthesis, decomposition, single or double replacement. __ Zn + ___ CuSO 4 __ Cu + __ ZnSO 4 __ ZnCl 2 + __ KOH __ Zn(OH) 2 + __ KCl AIM : How can you predict if a reaction takes place using the activity series? 2 2 (Single Replacement) (Double Replacement)
ACTIVITY SERIES AND SINGLE REPLACEMENT REACTIONS USE Table J, Activity Series in the Reference Table
HOW TO USE TABLE J? Zn + Cu(NO 3 ) 2 Cu + Zn(NO 3 ) 2 Type of reaction:Single Replacement
Zn + Cu(NO 3 ) 2 Cu + Zn(NO 3 ) 2 FIRST COLUMN OF TABLE J 1.Indicate the single element in the reactants in the reaction 2. Indicate the first element in the reactants that is bonded to other elements 3. If the single element in a single replacement reaction is a metal, look at 1st column of table J. 4. REACTION OR NO REACTION? If the single metal is listed above the metal in the compound, the reaction will take place. Zn Cu Zn is a metal Zn is above Cu
EXPLANATION Zn + Cu(NO 3 ) 2 Cu + Zn(NO 3 ) 2 WHY? Zn is above Cu on the table. Therefore, Zn will react with a compound of copper such as Cu(NO 3 ) 2 and displace/replace Cu = REACTION
NOTE Cu + Zn(NO 3 ) 2 will result in…. WHY is there no reaction? no reaction Cu is below Zn, it will not react with compounds of Zn
LETS TRY SOME 1) Pb + AgNO 3 Ag + Pb(NO 3 ) 2 ___________________ 2) Ni + ZnSO 4 NiSO 4 + Zn ___________________ reaction Because Ag is below Pb on Table J no reaction Because ZN is above Ni on Table J
Whats Up with Hydrogen hanging On the metals side?
WHATS UP WITH HYDROGEN HANGING ON THE METALS SIDE? One element that is in this column that is not a metal is hydrogen. All metals above hydrogen will react and displace hydrogen RESULT hydrogen gas is formed
LETS TRY SOME Mg + 2HCl H 2 + MgCl 2 WHY? Mg is above H on the table. Therefore, Mg will react with a compound of hydrogen such as HCl and displace/replace H = REACTION
LETS TRY SOME 1)Ca + H 2 O Ca(OH) 2 + H 2 ________________ 2) Cu + H 2 O Cu(OH) 2 + H 2 ________________ No reaction Because Ca is above H on Table J reaction Because Cu is below H on Table J
WHEN TO USE THE SECOND COLUMN OF TABLE J?
WHEN TO USE IT? If the single element in a single replacement reaction is a non-metal (specifically a halogen), look at second column of table J. A nonmetal will replace a less active nonmetal in a compound (the one that is higher up will react with the one that is lower)
F 2 + 2NaCl Cl 2 + 2NaF What is the most reactive nonmetal according to the table? _____________ Fluorine will react with anything below it and displace it. FLUORINE REVERSE: NO, because chlorine is below fluorine on the list, it will not replace fluorine in a compound. Cl 2 + NaF NO REACTION REACTION WILL HAPPEN
Complete the Independent Practice -IP will be collected at the end of class!!! -WORK ON UNIT 1 IN THE HOMEOWORK PACKET -Make up LABS!! Come see me if you are missing any -Work on 2.3 Independent Practice from yesterday…..