1. CHEMISTRY 8-19-08 Tuesday WARM-UP: Find your seat
CHEMISTRY Tuesday WARM-UP: Find your seat. Get book & fill out book card. Complete class reference sheet. Learning Goal: Become familiar with chemical equations and terminology. TODAY’S AGENDA: 1) What are emergency procedures? 2) Class expectations/description. 3) Crazy Rocket Demonstration. 4) Lab Safety Contract. HW: Assignment #1 essay & contract.

2. Crazy Rocket
Demonstration Notes

3. Equation for the reaction:
(C6H10O5)n(s) + O2(g)  CO2(g) H2O(g)
wood oxygen produces
carbon dioxide + water

4. Reaction Type
Combustion:
Any reaction where a substance (usually a hydrocarbon) is combined with oxygen to produce carbon dioxide and water

5. Energy changes
Because heat is released in this reaction it is called an “exothermic” reaction.

6. Why does the “rocket” lift off?
The heat produced heats the air “inside” the rocket; hot air is less dense than cooler air, so the rocket “lifts” off.