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Kenderian Cameron - Energy Two Part Reading. pdf
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Kinetic Potential
energy() energy()
Kinetic Potential
energy 3) energy ()
14 -
Consider this second situation involving the transformation of potential energy to kinetic
energy. Graph C represents what point in the pendulum's swing?
A) Point 1
B) Point 3
C) Point 5
D) At no point in the swing

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.