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Mountains and valleys are some of the features found in the layer of rock at Earth's surface called the
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How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123
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The rate constant for the reaction below is 6.2 x 10β5 mol lβ1 s β1. if the initial concentration of a is 0.0500 m, what is its concentration after 115 s?
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Which of the following describes the entropy change as a solution is made from a liquid and solid
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In an exothermic reaction at equilibrium, what is the effect of lowering the temperature? a. the reaction makes more products. b. the reaction makes more reactants. c. the reaction is unchanged.
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Mountains and valleys are some of the features found in the layer of rock at Earth's surface called...
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