+ energy methane + oxygen + energy + o + h...
TRANSCRIPT
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In some reactions energy is released. In some reactions energy is absorbed.
A reaction where energy is released is called an exothermic reaction.
Exo = Exits
2 2 CH4 + O2 → CO2 + H2O methane + oxygen → carbon dioxide + water
+ energy
+ energy
A reaction where energy is absorbed is called an endothermic reaction.
Endo = Enters
2 2 H2O → O2 + H2 water → oxygen + hydrogen + energy
+ energy
Note: Energy can be in a form of heat, sound, movement, light, electricity, electromagnetic radiation (ex invisible light, like uv rays)
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Why should you care? Because this reaction occurs in you 24/7.
C6H12O6 + O2→ CO2 + H2O glucose + oxygen → carbon dioxide + water
+ energy
+ energy Exothermic reaction.
Special Name: Cellular Respiration
How do we get Glucose? We get it from plants. How do plants produce it?
CO2 + H2O → C6H12O6 + O2 carbon dioxide + water → glucose + oxygen
+ energy
+ energy
Endothermic reaction.
Special Name: Photosynthesis