Question

If you are stirring sugar into your morning coffee, why do the sugar grains appear to disappear?

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1 point
The sugar is transforming into coffee molecules due to dissolving
The coffer and sugar are combining in a chemical reaction to create a new, sweeter coffee
The grains of sugar are being pulled apart by polar molecules in the coffee to create the solution

Answer 1

When the sugar dissolves, it is broken up into individual particles; each molecule is surrounded by water molecules. Essentially, you are trying to decide if a single molecule is a solid or liquid when dissolve.