Download presentation
Presentation is loading. Please wait.
1
(8th) Chapter 6-3 Cornell Notes
“Observing Chemical Change”
2
(8th) Chapter 6-3 Cornell Notes
Key Questions (8th) Chapter Cornell Notes What factors affect the rate of a chemical reaction? How is activation energy related to chemical reactions?
3
(8th) Chapter 6-3 Cornell Notes
Key Terms activation energy- concentration- catalyst- enzyme- inhibitor-
4
(8th) Chapter 6-3 Cornell Notes
511 × 511 - en.wikipedia.org Paragraph 1 activation energy: minimal E needed to start reaction; all chemical reactions need it; exothermic products less E than reactants, heat released & E no longer needed; endothermic products more E than reactants so need more E to keep going.
5
(8th) Chapter 6-3 Cornell Notes
511 × 511 - en.wikipedia.org (8th) Chapter 6-3 Cornell Notes Paragraph 2 chemical reactions have different rates; Factors affecting reaction rates: surface area; temperature; concentration; presence of catalysts; presence of inhibitors.
6
(8th) Chapter 6-3 Cornell Notes
511 × 511 - en.wikipedia.org Paragraph 3 in solids: only particles on surface area react with reactants; increase rate of reaction by breaking up solid (more material exposed).
7
(8th) Chapter 6-3 Cornell Notes
Paragraph 4 511 × 511 - en.wikipedia.org (8th) Chapter 6-3 Cornell Notes fast moving particles more E, more E gets over “activation hump”. increase temperature increases rate of reaction: particles move faster, more chance of colliding/reacting;
8
(8th) Chapter 6-3 Cornell Notes
511 × 511 - en.wikipedia.org Paragraph 5 increase concentration increases rate of reaction: concentration: amount of substance in a given volume; higher concentration more particles to react.
9
(8th) Chapter 6-3 Cornell Notes
511 × 511 - en.wikipedia.org (8th) Chapter 6-3 Cornell Notes Paragraph 6 change/lower amount of activation energy needed increases rate of reaction: catalyst: affect reaction rate but not a reactant; enzymes: biological catalysts like saliva.
10
(8th) Chapter 6-3 Cornell Notes
511 × 511 - en.wikipedia.org Paragraph 7 inhibitor: material used to decrease rate of reaction: most inhibitors prevent reactants coming together.
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.