Chemistry Honors – Class 29

Dates

• Period A – Monday, October 28th
• Periods C, D – Tuesday, October 29th

Types of Reactions

• Demo – gummy bear reaction
  • Q: what type of reaction is this? How would you classify the reaction?
  • KClO3 (s) → KClO3 (L), 2KClO3 (L) → 2KCl (s) + O2 (g), O2(g) + CH2O(s) → H2O (g) + CO2 (g)
• Overview of reaction types (handout in the documents folder)
  • changes in oxidation states are key to identifying types [LINK]
  • PRACTICE: oxidation states
• Types of Reactions (examples)
  • precipitation
  • acid-base
  • decomposition
  • combustion
  • combustion of hydrocarbon
  • synthesis
  • single displacement
• Practice (page 192)

Homework

• Ch. 7 (53, 54, 59) – note: use classification from handout
• NOTE: No Class meetings on Wednesday (Sophomore Retreat / Service Day)
• NOTE: next exam (chapters 5-7) on Friday, November 8th