I transport but am not visible, I aid in reactions without taking part. What am I?

Category: Science · Difficulty: hard

Hint: Think about what dissolves substances.

Answer

A solvent

Explanation

A solvent facilitates chemical reactions by dissolving solutes, allowing them to interact without being involved in the reaction itself.

This is a hard science riddle — a tricky one that takes a little thought. The answer is A solvent.

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