Reactions of Sulfurous Acid

These demonstrations illustrate the production and effects of sulfur dioxide, a pollutant generated by the burning of sulfur impurities in coal. The sulfurous acid produced by dissolving sulfur dioxide in water is allowed to react with various forms of calcium carbonate found in nature, namely marble, limestone, chalk, and eggshell.

Contents

Burning of Sulfur to Produce Sulfur Dioxide

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Reaction of Sulfurous Acid with Limestone and Granite

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Reaction of Sulfurous Acid with Marble and Granite

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Marble Chips with Sulfurous Acid

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Egg and Chalk with Sulfurous Acid

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