Exothermic vs Endothermic … 29

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Presentation transcript:

Exothermic vs Endothermic … 29 Reactants - the chemicals you start a reaction with Products- the chemicals that end the reaction Reactants products Al + Fe2O3   Al2O3 + 2 Fe

Exothermic and Endothermic…29

A reaction that absorbs energy Endothermic CO2 + H20 + energy C6H12O6 + O2 A reaction that absorbs energy Endothermic Decrease in temperature (cold) First aid cold packs Photosynthesis (uses sun’s energy) Reactants + Energy = products

A reaction that releases energy Exothermic C6H12O6 + O2 CO2 + H20 + energy A reaction that releases energy Exothermic Increase in temperature (heat) Ex. Jellyfish, fireflies Cellular Respiration (makes energy for you) Reactants = products + energy Lights up

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