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What is the original source of the energy that flows through most ecosystems? What would happen without this source?
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Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?
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Compare and contrast physical changes with chemical changes.
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An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.
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Chemistry, 23.06.2019 01:30
Concentrations expressed as a percent by mass are useful when the solute is a a. liquid b. gas c. solid
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What is the original source of the energy that flows through most ecosystems? What
would happen wit...
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