thursday 2/9/12
DESCRIPTION
Thursday 2/9/12. Bell Ringer. Schedule. PAP Chemistry. Bell Ringer Types of Chemical Rxns Notes. HOMEWORK: Practice Problems. I CAN……solve chemistry problems by being an independent, creative thinker. Teachers open the door, but you must enter by yourself. . - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Thursday 2/9/12](https://reader030.vdocuments.net/reader030/viewer/2022033108/56812bad550346895d8fddd9/html5/thumbnails/1.jpg)
Thursday2/9/12
Bell Ringer
1) Get out your notes from yeterday.
2) Write the balanced equation:
3) Ifluorine reacts with sodium
bromide to yield……
Schedule1. Bell Ringer
2. Types of Chemical Rxns Notes
HOMEWORK: Practice Problems
PAP Chemistry
Teachers open the door, but you must enter by yourself.
I CAN……solve chemistry problems by being an independent, creative
thinker.
![Page 2: Thursday 2/9/12](https://reader030.vdocuments.net/reader030/viewer/2022033108/56812bad550346895d8fddd9/html5/thumbnails/2.jpg)
I II III IV V
Chemical Reactions
Types of Chemical Reactions
![Page 3: Thursday 2/9/12](https://reader030.vdocuments.net/reader030/viewer/2022033108/56812bad550346895d8fddd9/html5/thumbnails/3.jpg)
A. Combination or Synthesis the combination of 2 or more
substances to form a compound
only one product
A + B AB
![Page 4: Thursday 2/9/12](https://reader030.vdocuments.net/reader030/viewer/2022033108/56812bad550346895d8fddd9/html5/thumbnails/4.jpg)
A. Synthesis
H2(g) + Cl2(g) 2 HCl(g)
![Page 5: Thursday 2/9/12](https://reader030.vdocuments.net/reader030/viewer/2022033108/56812bad550346895d8fddd9/html5/thumbnails/5.jpg)
Al(s)+ Cl2(g) AlCl3(s)2 3 2
A. Combination or Synthesis
Products: ionic - cancel charges covalent - hard to tell
![Page 6: Thursday 2/9/12](https://reader030.vdocuments.net/reader030/viewer/2022033108/56812bad550346895d8fddd9/html5/thumbnails/6.jpg)
B. Combustion
CH4(g) + 2O2(g) CO2(g) + 2H2O(g)
the burning of any substance in O2 to produce heat
A + O2 B
EX: Burning of natural gas, wood and gasoline
![Page 7: Thursday 2/9/12](https://reader030.vdocuments.net/reader030/viewer/2022033108/56812bad550346895d8fddd9/html5/thumbnails/7.jpg)
Na(s)+ O2(g)
C3H8(g)+ O2(g) 5 3 4
B. Combustion
Products: contain oxygen hydrocarbons form CO2 + H2O
CO2(g)+ H2O(g)
Na2O(s) 4 2
***Combustion reactions are a type of synthesis reaction
![Page 8: Thursday 2/9/12](https://reader030.vdocuments.net/reader030/viewer/2022033108/56812bad550346895d8fddd9/html5/thumbnails/8.jpg)
C. Decomposition
a compound breaks down into 2 or more simpler substances
only one reactant
AB A + B
![Page 9: Thursday 2/9/12](https://reader030.vdocuments.net/reader030/viewer/2022033108/56812bad550346895d8fddd9/html5/thumbnails/9.jpg)
C. Decomposition
2 H2O(l) 2 H2(g) + O2(g)
![Page 10: Thursday 2/9/12](https://reader030.vdocuments.net/reader030/viewer/2022033108/56812bad550346895d8fddd9/html5/thumbnails/10.jpg)
KBr(l) K(s) + Br2(l) 2 2
C. Decomposition
Products: binary - break into elements others - hard to tell
2NaHCO3(s) Na2CO3(aq) + CO2(g) + H2O(l)
![Page 11: Thursday 2/9/12](https://reader030.vdocuments.net/reader030/viewer/2022033108/56812bad550346895d8fddd9/html5/thumbnails/11.jpg)
D. Single Displacement or Replacement one element replaces another in a compound
metal replaces metal (+) nonmetal replaces nonmetal (-) Halogens are replaced by a more reactive
halogen
A + BC B + AC
![Page 12: Thursday 2/9/12](https://reader030.vdocuments.net/reader030/viewer/2022033108/56812bad550346895d8fddd9/html5/thumbnails/12.jpg)
D. Single Displacement or Replacement
Cu(s) + 2AgNO3(aq) Cu(NO3)2(aq) + 2Ag(s)
![Page 13: Thursday 2/9/12](https://reader030.vdocuments.net/reader030/viewer/2022033108/56812bad550346895d8fddd9/html5/thumbnails/13.jpg)
Fe(s)+ CuSO4(aq) Cu(s)+ FeSO4(aq)
D. Single Displacement or Replacement
Products: metal metal (+) nonmetal nonmetal (-) free element must be more active (check activity series)
Br2(l)+ NaCl(aq) N.R.
![Page 14: Thursday 2/9/12](https://reader030.vdocuments.net/reader030/viewer/2022033108/56812bad550346895d8fddd9/html5/thumbnails/14.jpg)
Activity Series of the Metals
Lithium Potassium Calcium Sodium Magnesium Aluminum Zinc Chromium Iron Nickel Tin Lead HydrogenHydrogen Bismuth Copper Mercury Silver Platinum Gold
Metals can replace other metalsprovided that they are above themetal that they are trying to replace.
Metals above hydrogen can replace hydrogen in acids.
Metals from sodium upward canreplace hydrogen in water
![Page 15: Thursday 2/9/12](https://reader030.vdocuments.net/reader030/viewer/2022033108/56812bad550346895d8fddd9/html5/thumbnails/15.jpg)
The Activity Series of the Halogens
Fluorine
Chlorine
Bromine Iodine
Halogens can replace other halogens in compounds, providedthat they are above the halogenthat they are trying to replace.
2NaCl(s) + F2(g) 2NaF(s) + Cl2(g)
MgCl2(s) + Br2(g) No Reaction
![Page 16: Thursday 2/9/12](https://reader030.vdocuments.net/reader030/viewer/2022033108/56812bad550346895d8fddd9/html5/thumbnails/16.jpg)
AB + CD AD + CB
E. Double Displacement or Replacement ions in two compounds “change partners” cation of one compound combines with
anion of the other
![Page 17: Thursday 2/9/12](https://reader030.vdocuments.net/reader030/viewer/2022033108/56812bad550346895d8fddd9/html5/thumbnails/17.jpg)
E. Double Displacement or Replacement
Pb(NO3)2(aq) + K2CrO4(aq) PbCrO4(s) + 2KNO3(aq)
![Page 18: Thursday 2/9/12](https://reader030.vdocuments.net/reader030/viewer/2022033108/56812bad550346895d8fddd9/html5/thumbnails/18.jpg)
Pb(NO3)2(aq)+ KI(aq) PbI2(s)+ KNO3(aq)
E. Double Displacement or Replacement Products:
switch negative ions one product must be insoluble (check
solubility table)
NaNO3(aq)+ KI(aq) N.R.
2 2