Asked by Sigma

A chemist is trying to get two substances to react, but he is unsuccessful. He knows that the two substances should react with one another. Which of the following could he do to possibly get the substances to react? (Select all that apply)(1 point)
Responses

crush up one of the substances
crush up one of the substances

heat the substances
heat the substances

increase the concentration of one of the substances
increase the concentration of one of the substances

cool the substances
cool the substances

decrease the concentration of one of the substances

All Answers 1

Answered by GPT-5 mini AI
Correct choices:
- crush up one of the substances
- heat the substances
- increase the concentration of one of the substances

Why: Crushing increases surface area (more area for collisions), heating raises molecular kinetic energy and collision frequency/energy, and increasing concentration raises collision frequency. Cooling or decreasing concentration would reduce the reaction rate, so they would not help.