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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.
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Crazy Rocket Demonstration Notes
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Equation for the reaction:
(C6H10O5)n(s) + O2(g) CO2(g) H2O(g) wood oxygen produces carbon dioxide + water
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Reaction Type Combustion: Any reaction where a substance (usually a hydrocarbon) is combined with oxygen to produce carbon dioxide and water
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Energy changes Because heat is released in this reaction it is called an “exothermic” reaction.
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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.
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