Question

Martha is making lemonade. She takes the jug full of water and adds one tablespoon of sugar and starts stirring it slowly. She notices that after stirring for 15 minutes, some black powder is present at the bottom of the jug. What is the reason for it?

Answer 1

Answer:

Explanation: Concentrated sulfuric acid can perform a dehydration reaction with table sugar. After mixing, the color changes from white to brownish and eventually to black. The expansion of the mixture is the result of vaporization of water and CO2 inside the container.