20. tell one thing that is true about these balanced chemical equations. explain your answer. a + b → cde.      h2 + o2 → h2o2.      reactant → product.                 a. they are balanced so they have more reactants than products. b. they are not balanced so they have more products than reactants. c. the chemical reaction used up some of the reactants mass. d. the mass of the reactants and the mass of the products are equal.

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explanation:

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a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.