goes in
goes out
plants
light
temperature
100

what goes in in a chemical reaction

reactants 

100

when something goes out in a chemical reaction 

product 

100

what gives plants food and energy? 

photosynthesis

100
what gives off light 

radiant energy 

100

what gives off heat

thermal energy 

200

energy coming in

exothermic reaction

200

energy going out 

endothermic reaction

200


  1. the branch of chemistry concerned with the quantities of heat evolved or absorbed during chemical reactions.


thermochemistry 

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