Adrenaline gives you energy and stimulates your heart. When in stressful situations, like survival, you’re body is reacting and releasing this hormone.
C. Of the products is equal to the reactants.
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The radioactive decay of unstable isotopes continually generates new energy within Earth's crust and mantle, providing the primary source of the heat that drives mantle convection. Plate tectonics can be viewed as the surface expression of mantle convection.
B. Increasing the effective nuclear charge on an ion results in energy levels that are closer together.
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Water would not expand when it freezes.<span> </span>
