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7Cr Energy Lesson 1
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Energy in chemical systems can be broken into two categories including
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physical changes and melting points
physical changes and chemical reactions
chemical reactions and synthesis reactions
physical changes and sublimation
Kinetic energy can be characterized as the energy of
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motion
position
location
stillness
Potential energy in chemical reactions can be characterized by the energy of
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motion
vibration
composition
stillness
Molecules can move in two fundamental ways which includes
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vibration and stillness
stillness and translation
only vibration
vibration and translation
Potential energy in chemical systems can be related to the composition of the substances reacting. Composition refers to
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the distance between particles
the chemical bonds in the reactants versus the products
the physical location of the particles
one particle is above the other particle
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