Watch this cool science experiment with Sulfuric Acid and Sugar. Sulfuric acid (96%) is mixed with sugar, which is attacked by the acid. The final products are carbon, water vapor, and sulfur dioxide gas.
Basically, all you do to perform this demonstration is put ordinary table sugar in a glass beaker and stir in some concentrated sulfuric acid.
Sugar is white. Sulfuric acid is nearly colorless. So how is it sulfuric acid turns sugar black?
The heat is due to the release of a tremendous amount of energy. All that heat vaporizes water producing steam—the mist is mostly water.³ Be careful to avoid the mist, as it doubtless contains traces of acid.