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In stereometry, we relate the quantities of the substances that are involved in a chemical reaction.
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In this problem, we're going to establish the balanced chemical reaction between sulfur dioxide, oxygen gas, and water to form sulfuric acid, which is the reaction responsible for the formation of acid rain.
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And from here, we're going to relate the amount of these substances in the reaction in terms of their mole ratio.
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In particular, we're going to find the most of s -o -2 that are needed in order to form one mole of h2 -s -o -4.
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So let's balance the equation by making sure that both sides of the equation contain the same number of each element.
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So let's count first the number of s, o, and h on both sides of this unbalanced equation.
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So on the left side, the number of s is equal to 1.
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The same is true on the right side...