1. Friday Bellwork
Predict the products of the following reactions and balance the equation.
Ca N2 
Cl Fe (iron III) 
MgO CO2 
Mg3N2 
Li3N 
H2CO 

2. Types of Chemical Reactions
Part 3 Single Replacement and Double Replacement Reactions 11.2

3. Single Replacement Reaction:
One element replaces another element in a compound.
element + compound  element + compound
A BC  AC B

5. ___Zn + ___HCl 
___Cl ___KI  2
___ZnCl2 + ___H2 2
___KCl + ___I2 2

6. To determine if a single replacement reaction will take place you must compare the activities of the elements involved.
For metals, use the Activity Series (pg. 217). A metal will replace any metal below it on the activity series.

7. Activity Series of Metals and Halogens
Metals Halogens
Deceasing activity
Lithium Fluorine
Potassium Chlorine
Calcium Bromine
Sodium Iodine
Magnesium
Aluminum
Zinc
Chromium
Iron
Nickel
Tin
Lead
HYDROGEN
Copper
Mercury
Silver
Platinum
Gold
Will Na replace Cr in a single replacement reaction?
Yes!

8. Activity Series of Metals
Practice:
___I2 + ___NaCl 
___AgNO3 + ___Mg 
___KBr + ___F2 
___Mg(NO3)2 + ____Cu 
N.R. 2 2
___Mg(NO3)2 + ___Ag 2 2
___KF + ___Br2
Activity Series of Metals
Lithium
Potassium
Barium
Calcium
Sodium
Magnesium
Aluminum
Zinc
Iron
Cadmium
Nickel
Tin
Lead
Hydrogen (a nonmetal)
Copper
Mercury
Silver
Platinum
Gold
Metals from Li to Na will replace H from water and acids; metals from Mg to Pb will replace H from acids only.
Decreasing Activity
N.R.

9. Double Replacement Reaction:
Two elements replace each other in compounds.
AB + CD  AD + CB
MgCO HCl  MgCl2 + H2CO3
AgNO3 + NaCl  AgCl + NaNO3

11. In order for double replacement reaction to take place, one of the products must be an insoluble solid (ppt), a gas, or a molecular compound (like H2O). Solubility rules on pg 227 list common insoluble substances.

12. Negative Ion
Plus
Positive Ion
Form a Compound Which is:
Any negative ion +
Alkali metal ions
(Li+, Na+, K+, Rb+, Cs+)
Soluble
Ammonium ion
Nitrate
Any positive ion
Acetate
Ag+
Not soluble
Chloride, Bromide, or Iodide
Ag+, Pb2+, Hg22+, Cu+
Any other positive ion
Sulfate
Ca2+, Sr2+, Ba2+, Ra2+, Ag+, Pb2+
Sulfide
Alkali ions or Ammonium, Be, Mg, Ca, Sr, Ba, Ra,
Hydroxide
Alkali ions or Ammonium
Phosphate, Carbonate, or Sulfite

13. The Solubility Song! Nitrates and Group One and Ammonium,
To the tune of “ My Favorite Things” from “The Sound of Music”
Nitrates and Group One and Ammonium,
These are all soluble, a rule of thumb.
Then you have chlorides, they’re soluble fun,
All except Silver, Lead, Mercury I.
Then you have sulfates, except for these three:
Barium, Calcium and Lead, you see.
Worry not only few left to go still.
We will do fine on this test. Yes, we will!
Then you have the---
Insolubles
Hydroxide,
Sulfide and Carbonate and Phosphate,
And all of these can be dried!

14. Compound Precipitate Formed?
BaSO4 _______
Pb(NO3)2 _______
Ag2S _______
PbCl2 _______
NH4Cl _______
Cr PO4 _______
Yes No
Yes
Yes No
Yes

15. __Na2SO4 + __Ba(NO3)2 
__NaOH + __Fe(NO3)3 
__NaNO3 + __BaSO4 2
Na+ NO3-
Ba2+ SO42-
NaNO3
BaSO4 3
__NaNO3 + __Fe(OH)3 3
Na+ NO3-
Fe3+ OH-
NaNO3
Fe(OH)3