Name: _____________________________________
Unit 14: Electrochemistry
Period: ____________
Date: _________________________
Aim 14.4: Table J (The Activity Series) and Redox (Oxidation-Reduction) Reactions
Do Now:
1.Finish the words
2. Label the oxidation states first!!
3. Label the oxidation states first!
L
E
is
O
G
E
R
is
Review: The formation of Ionic Compounds
The diagram below shows formation of an ionic compound.
1. Explain, in terms of electrons, why this is an ionic compound.
_______________________________________________________________________________________________________________
_______________________________________________________________________________________________________________
2. Explain, in terms of types of atoms, why this is an ionic compound.
_______________________________________________________________________________________________________________
3. Write the chemical formula for the ionic compound
that forms, including charges of atoms.
____________________________
4. If the Al atoms have a greater positive charge, why
does this compound have a total charge of zero?
_____________________________________________________________
_____________________________________________________________
Video: Single-Replacement RedOx (Reduction-Oxidation) Reactions
https://www.youtube.com/watch?v=yx-FP9zNJz8 8:50 – 12:20
8:55 Why are silver (Ag) and gold (Au) good metals for making
jewelry?
9:05 What are the three most reactive metals?
9:56 - 10:20 For each reaction below, state whether or not it can occur based on Table J.
According to Table J, which metal is more active, Zn0(s) or Mg0(s)? __________________
How do you know? ____________________________________________________________________________________________
Mg0(s) + Zn+2(SO4)-2(aq)  Zn0(s) + Mg+2(SO4)-2(aq)
Zn0(s) + Mg+2(SO4)-2(aq)  Mg0(s) + Zn+2(SO4)-2(aq)
a) Based on Table J, will this reaction occur? _________
a) Based on Table J, will this reaction occur? ___________
b) What would you see happen to the magnesium
strip?
b) What would you see happen to the zinc strip?
Lesson: Table J and the Activity Series
Table J – The Activity Series
Table J is called the Activity Series because it shows which atoms
are the most active in a reaction. An atom of an element that is
more active than the atom of another element will replace that
element in a compound. These reactions occur spontaneously
(randomly and with no energy added)
Ex 1: Li is more active than K, so it will replace K in the following
reaction:
Li + K(OH) -> Li(OH) + K
1. How does Table J indicate that Li is more active than K?
Ex 2: K is less active than Li, so it will not replace Li in the following
reaction:
K + LiOH  Li + KOH (THIS REACTION WILL NOT HAPPEN)
2. How does Table J indicate that K is less active than Li?
3. Which element could be “x” and replace K in the reaction below:
X + KOH  K + XOH
(a) Ca (b) Ba
(c) Rb (d) Na
How do you know? __________________________________
_________________________________________________________
_________________________________________________________
What happens when a more active metal element replaces another in a REDOX reaction?
*In a redox reaction, electrons are transferred from one element to another.
*A single-replacement reaction is always a redox reaction. When a more active metal replaces the metal
atom in a compound it reduces it by giving it electrons.
*In the example below, Li0(s) reduced K+ by giving it electrons because it is more active than K+.
Which reaction occurs spontaneously?
(Use table J: find an example in which the lone
element is more active than what it replaces)
Part 2: Will this single-replacement reaction occur spontaneously?
*Circle yes or no
*explain why based on table J, The activity series
(state whether the lone element is more or less active than the metal in the compound)
Ex:
Ca + 2NaCl  CaCl2 + 2Na
yes or no
explain: _________________________________________________________________________________________________________
1.
K + LiBr  Li + KBr
yes or no
explain: _________________________________________________________________________________________________________
2.
Mg + CuSO4  MgSO4 + Cu
yes or no
explain: _________________________________________________________________________________________________________
3.
Ni + CuCl2  NiCl2 
yes or no
explain: _________________________________________________________________________________________________________
Part 3: Reviewing Ox-Redux Reactions
For each reaction,
*write the oxidation state above each element
*state if each element is oxidized or reduced
*state which element is the oxidizing agent or reducing agent
1. Write the oxidation state above each element
Mg(s) + 2 LiCl(aq) → MgCl2(aq) + Li(s)
1. Write the oxidation state above each element
Cl2 + 2NaBr → 2NaCl + Br2
2.
a) Which reactant is reduced? __________
b) Which reactant is oxidized? __________
2.
a) Which reactant is reduced? __________
b) Which reactant is oxidized? __________
3.
Which reactant is the reducing agent? _____________
Which reactant is the oxidizing agent? _____________
3.
Which reactant is the reducing agent? _____________
Which reactant is the oxidizing agent? _____________
4. Explain, in terms of activity of the metals, if this
reaction will occur: “This reaction will/will not
occur because Mg is more/less active than Li. “
1. Write the oxidation state above each element
4. Explain, in terms of activity of the metals, if this
reaction will occur: ______________________________________
____________________________________________________________
1. Write the oxidation state above each element
Br2 + 2KI → 2KBr + I2
Fe(s) + 2HCl(Aq) --> FeCl2(Aq) + H2(g)
2.
a) Which reactant is reduced? __________
b) Which reactant is oxidized? __________
2.
a) Which reactant is reduced? __________
b) Which reactant is oxidized? __________
3.
Which reactant is the reducing agent? _____________
Which reactant is the oxidizing agent? _____________
3.
Which reactant is the reducing agent? _____________
Which reactant is the oxidizing agent? _____________
4. Explain, in terms of activity of the metals, if this
reaction will occur: ______________________________________
____________________________________________________________
4. Explain, in terms of activity of the metals, if this
reaction will occur: ______________________________________
____________________________________________________________
Complete the sentence using LEO the Lion says “GER”
L_______________ Electrons is _O__________________________
1. (Hint: Find an answer choice where the
oxidation numbers change)
& __G_________________ Electrons is ___R_______________________
2.
3. Strategy: USE TABLE J, find which atom is least reactive (and therefore easily reduced by more active metals)
4.
name of chemical reaction: _______________________________________________
a) Write the oxidation number above each element in the reactants and products.
b) Based on LEO the lion says GER,
*is Al reduced or oxidized? _________________________ Why (in terms of electrons) _______________________________
*Is Cu reduced or oxidized? _________________________ Why (in terms of electrons) ______________________________
c) What is the oxidizing agent? ______________________
d) What is the reducing agent? ________________________
e) Write the half-reaction for oxidation: ____________________________________________________________________________
f) Write the half-reaction for reduction: ____________________________________________________________________________
g) Explain, in terms of activity of metals (see Table J), why Al(s) replaces Cu ions in CuSO4(aq)
______________________________________________________________________________________________________________
______________________________________________________________________________________________________________
Homework
Review: 7 Types of Organic Chemical Reactions
Reaction Type
Example
Synthesis - Two elements combine to form a
compound
Decomposition – A compound breaks apart
into two elements
Single Replacement
(ALWAYS OX-REDUX) – a single element
replaces an element in a compound
Double Replacement – two compounds
switch partners
Combustion – a hydrocarbon (C&H only)
reacts with oxygen to form CO2, H2O and heat
(flame)
Neutralization –an acid and a base react to
form water and a salt

4 Al(s) + 3O2(g)  2Al2O3(s)

Na2Co3(s)  Na2O(s) + CO2(g)

Zn(s) + 2HCl(aq)  ZnCl2(aq) + H2(g)

AgNO3(aq) + 2NaCl(aq)  AgCl(s) + NaNO3(aq)
C6H12O6 + O2  H2O + CO2 + 140kJ
HCl + NaOH  H2O + NaCl
Saponification – a reaction between a base
(ex NaOH) and an ester to form soap.
1. Name each type of reaction.
a) LiOH + KF  LiF + KOH
_______________________________________________
b) C2H6+ O2  H2O + CO2 + 140kJ
_______________________________________________
c) Li + Cl  LiCl
_______________________________________________
d)
_______________________________________________
e) Li + KOH  K + LiOH
_______________________________________________
f) HCl + KOH  H2O + KCl
_______________________________________________
g) H2O2 --> H2O + O2
_______________________________________________
2. Which reaction is a redox (oxidation reduction)
reaction? (Hint: find a choice with an element
whose oxidation number is 0)
3. Write the products of the neutralization reaction
between the acid and base.
a) LiOH + KF  LiF + KOH
b) NaCl + KF  LiF + KCl
c) Li + KOH  K + LiOH
d) KCl + NaF  KF + NaCl
HCl + NaOH  ____________ + ___________________
4-6
4. __________________________________ (look at top of HW)
5. __________________________________ (see reference tables)
6. ________________________ and __________________ (think about the types of atoms involved)
7. Write the name of each reaction type (see Classwork)
a)
_______________________________________________
b) Na + KOH  K + NaOH
_______________________________________________
c) KOH + NaF  KF + NaOH
_______________________________________________
d) C3H8+ O2  H2O + CO2 + 250kJ
_______________________________________________
e) HCl + LiOH  H2O + LiCl
_______________________________________________
f) 2 KClO3 → 2 KCl + 3 O2
______________________________________________
g) Li + Cl  LiCl
_______________________________________________
__________________________________________________________________________________________________________________________
8. Which metal is more active than Ni and less
9. Which of the following would replace replace
active than Zn?
( 1) Cu
(2) Cr
(3) Mg
(4) Pb
H2 in a reaction?
(1) Cu
(2) Cl2
(3) Ca
(4) F2