Task: Explanation
Input (English): Question: If Jim is performing chemical reactions in his lab and he wanted to decrease the strength of his reaction, what would he do to the surface area? 
 Answer: decrease it
Output (English): Surface Area of Reactants When a solid substance is involved in a chemical reaction, only the matter at the surface of the solid is exposed to other reactants. If a solid has more surface area, more of it is exposed and able to react.