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Question
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

heat the substances
heat the substances

crush up one of the substances
crush up one of 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
decrease the concentration of one of the substances
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All Answers 1

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

Why: Raising temperature increases molecular kinetic energy and collision energy, crushing a solid increases its surface area (more contact), and higher concentration increases collision frequency. Cooling or decreasing concentration would make a reaction less likely.