chapter 10 chemical reactions. 2 homework for chap 10 read p 273 – 286; 288 - 293 applying the...
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![Page 1: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/1.jpg)
Chapter 10
Chemical Reactions
![Page 2: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/2.jpg)
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Homework for Chap 10Homework for Chap 10
Read p 273 – 286; 288 - 293
Applying the Concepts # 1 – 37,
39 – 42, 44 – 47, 49 - 53
![Page 3: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/3.jpg)
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Molecular formula shows the actual number of atoms of each element in the smallest unit of a substance
Empirical formula shows the simplest whole-number ratio of the atoms in a substance
H2OH2O
molecular empirical
C6H12O6 CH2O
O3 O
N2H4 NH2
Chemical FormulasChemical Formulas
![Page 4: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/4.jpg)
Fig. 10.2 Several ways to express common molecules
![Page 5: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/5.jpg)
3 ways of representing the reaction of H2 with O2 to form H2O
Chemical reaction ≡ process in which one or more substances is changed into one or more new substances
Chemical equation ≡ use of chemical symbols to show what happens during a chemical reaction
reactants products
![Page 6: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/6.jpg)
Fig. 10.4 The Combustion of Charcoal
C + O2 → CO2
“Carbon reacts with oxygen to yield carbon dioxide”
![Page 7: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/7.jpg)
Fig. 10.5 The meaning of subscripts and coefficients
![Page 8: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/8.jpg)
Fig. 10.6 Illustration of the Law of Conservation of Mass
![Page 9: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/9.jpg)
Fig. 10.8 Hydrocarbons and Carbohydrates
C8H18
C3H8
C12H22O11
![Page 10: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/10.jpg)
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Types of Chemical ReactionsTypes of Chemical Reactions
1) Oxidation-Reduction (Redox)
2) Combination
3) Decomposition
4) Replacement
5) Ion Exchange
![Page 11: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/11.jpg)
(electron transfer reactions)
2 Mg (s) + O2 (g) 2 MgO (s)
Mg is the reducing agent (supplieselectrons and is oxidized)
O2 is the oxidizing agent (takes electronsand is reduced)
Oxidation – an atom loses electrons
Reduction – an atom gains electrons
Mg2+O2-
![Page 12: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/12.jpg)
Fig. 10.9 Example of an oxidizing agent (“chlorine”)
Others:
1) Bleach
2) Hydrogen
peroxide
3) Oxygen
4) Ultraviolet
light
![Page 13: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/13.jpg)
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Types of Chemical ReactionsTypes of Chemical Reactions
1) Oxidation-Reduction (Redox)
2) Combination
3) Decomposition
4) Replacement
5) Ion Exchange
![Page 14: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/14.jpg)
Fig 10.10 Iron combines with oxygen to form rust (iron oxide)
4 Fe (4 Fe (ss) + 3 O) + 3 O22 ( (gg) 2 Fe) 2 Fe22OO33 ( (ss))
![Page 15: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/15.jpg)
Hydrogen combines with oxygento form water (dihydrogen monoxide)
![Page 16: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/16.jpg)
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Types of Chemical ReactionsTypes of Chemical Reactions
1) Oxidation-Reduction (Redox)
2) Combination
3) Decomposition
4) Replacement
5) Ion Exchange
![Page 17: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/17.jpg)
FIG. 10.11 DECOMPOSITION OF MERCURY OXIDE
2 HgO (s) → 2 Hg (l) + O2 (g)heat
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Decomposition of Hydrogen PeroxideDecomposition of Hydrogen Peroxide
2 H2 H22OO22 (l)(l) → 2 H→ 2 H22O O (l)(l) + O + O22 (g)(g)
(Demo)(Demo)
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Types of Chemical ReactionsTypes of Chemical Reactions
1)1) Oxidation-Reduction (Redox)Oxidation-Reduction (Redox)
2)2) CombinationCombination
3)3) DecompositionDecomposition
4)4) ReplacementReplacement
5)5) Ion ExchangeIon Exchange
![Page 20: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/20.jpg)
Fig. 10.13 Replacement reaction between aluminum metal and the blue copper chloride solution
2 Al (s) 3 CuCl2 (aq) → 2 AlCl3 (aq) + 3 Cu (s)
CuClCuCl22
CuCuAlAl
AlClAlCl33
![Page 21: Chapter 10 Chemical Reactions. 2 Homework for Chap 10 Read p 273 – 286; 288 - 293 Applying the Concepts # 1 – 37, 39 – 42, 44 – 47, 49 - 53](https://reader030.vdocuments.mx/reader030/viewer/2022032704/56649d635503460f94a45d04/html5/thumbnails/21.jpg)
• Replacement reactions take place whenReplacement reactions take place whena more active metal gives up electronsa more active metal gives up electronsto a less active metal.to a less active metal.
• How do we know if a replacement reactionHow do we know if a replacement reactionwill take place or not occur?will take place or not occur?
• Refer to Refer to the activity seriesthe activity series for common metals for common metals
• Fig 10.12, p 264Fig 10.12, p 264
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Fig. 10.12 The activity series for common metals
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Fig. 10.12 The activity series for common metals
2 Na + 2H2 Na + 2H22O O 2NaOH + H2NaOH + H2 2 ↑↑
Zn + 2HCl ZnClZn + 2HCl ZnCl22 + H + H22 ↑ ↑
Cu + HCl no reactionCu + HCl no reaction