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Transcript of The Chapter 7 Homework is due on Thursday, October 29 at 11:59 pm. The Chapter 6 and 7 Test is on...
![Page 1: The Chapter 7 Homework is due on Thursday, October 29 at 11:59 pm. The Chapter 6 and 7 Test is on Friday, October 30.](https://reader035.fdocuments.us/reader035/viewer/2022062311/5a4d1b587f8b9ab0599aa120/html5/thumbnails/1.jpg)
• The Chapter 7 Homework is due on Thursday, October 29 at 11:59 pm.
• The Chapter 6 and 7 Test is on Friday, October 30
![Page 2: The Chapter 7 Homework is due on Thursday, October 29 at 11:59 pm. The Chapter 6 and 7 Test is on Friday, October 30.](https://reader035.fdocuments.us/reader035/viewer/2022062311/5a4d1b587f8b9ab0599aa120/html5/thumbnails/2.jpg)
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![Page 3: The Chapter 7 Homework is due on Thursday, October 29 at 11:59 pm. The Chapter 6 and 7 Test is on Friday, October 30.](https://reader035.fdocuments.us/reader035/viewer/2022062311/5a4d1b587f8b9ab0599aa120/html5/thumbnails/3.jpg)
• Please get out your Chapter 6 Review Worksheet
![Page 5: The Chapter 7 Homework is due on Thursday, October 29 at 11:59 pm. The Chapter 6 and 7 Test is on Friday, October 30.](https://reader035.fdocuments.us/reader035/viewer/2022062311/5a4d1b587f8b9ab0599aa120/html5/thumbnails/5.jpg)
Overview: Life Is Work
• Living cells require energy from outside sources.
© 2014 Pearson Education, Inc.
Cells use chemical energy stored in organic molecules to regenerate ATP, which powers work.
![Page 6: The Chapter 7 Homework is due on Thursday, October 29 at 11:59 pm. The Chapter 6 and 7 Test is on Friday, October 30.](https://reader035.fdocuments.us/reader035/viewer/2022062311/5a4d1b587f8b9ab0599aa120/html5/thumbnails/6.jpg)
Figure 7.2
Lightenergy
ECOSYSTEM
Photosynthesisin chloroplasts
CO2 H2OCellular respiration
in mitochondria
Organicmolecules O2
ATP ATP powersmost cellular work
Heatenergy
![Page 7: The Chapter 7 Homework is due on Thursday, October 29 at 11:59 pm. The Chapter 6 and 7 Test is on Friday, October 30.](https://reader035.fdocuments.us/reader035/viewer/2022062311/5a4d1b587f8b9ab0599aa120/html5/thumbnails/7.jpg)
Electronegativity
![Page 8: The Chapter 7 Homework is due on Thursday, October 29 at 11:59 pm. The Chapter 6 and 7 Test is on Friday, October 30.](https://reader035.fdocuments.us/reader035/viewer/2022062311/5a4d1b587f8b9ab0599aa120/html5/thumbnails/8.jpg)
Redox Reactions: Oxidation and Reduction
• The transfer of electrons during chemical reactions releases energy stored in organic molecules. This released energy is ultimately used to synthesize ATP.
• Chemical reactions that transfer electrons between reactants are called oxidation-reduction reactions, or redox reactions.
© 2014 Pearson Education, Inc.
![Page 9: The Chapter 7 Homework is due on Thursday, October 29 at 11:59 pm. The Chapter 6 and 7 Test is on Friday, October 30.](https://reader035.fdocuments.us/reader035/viewer/2022062311/5a4d1b587f8b9ab0599aa120/html5/thumbnails/9.jpg)
Oxidation• In oxidation, a substance loses electrons, or is
oxidized.
![Page 10: The Chapter 7 Homework is due on Thursday, October 29 at 11:59 pm. The Chapter 6 and 7 Test is on Friday, October 30.](https://reader035.fdocuments.us/reader035/viewer/2022062311/5a4d1b587f8b9ab0599aa120/html5/thumbnails/10.jpg)
Reduction• In reduction, a substance gains electrons, or is
reduced (the amount of positive charge is reduced).
© 2014 Pearson Education, Inc.
![Page 11: The Chapter 7 Homework is due on Thursday, October 29 at 11:59 pm. The Chapter 6 and 7 Test is on Friday, October 30.](https://reader035.fdocuments.us/reader035/viewer/2022062311/5a4d1b587f8b9ab0599aa120/html5/thumbnails/11.jpg)
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Figure 7.UN02
becomes oxidized
becomes reduced
• The electron donor is called the reducing agent. (X)
• The electron acceptor is called the oxidizing agent. (Y)
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• The electron donor is called the reducing agent. _____
• The electron acceptor is called the oxidizing agent. _____
becomes oxidized(loses electron)
becomes reduced(gains electron)
(Na)
(Cl)
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Methane(reducing
agent)
Oxygen(oxidizing
agent)
Carbon dioxide Water
becomes reduced
Reactants Products
becomes reduced
becomes oxidized
Some redox reactions do not transfer electrons but change the electron sharing in covalent bonds.