Respuesta :

use a mortar & pestle to grind the solute into smaller particles, thus increasing the surface area.

Answer:

Scientist increases the surface area of a solute by grinding the solute with a motor and pestle.  

Explanation:

Grinding of a solid solute exposes the reactant molecules to new surfaces. When the surface area increases it allows greater frequency of collision between the reactant particles. The reactant particles can now collide in proper orientation. The increase in surface area thus speeds up the rate of the reaction.

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