Problem: If a reaction is exothermic, then which of the following statements is always true? A. The products have lower potential energy than the reactants. B. Energy must be added for the reaction to proceed. C. The products have lower entropy (are more ordered) than the reactants.D. It occurs extremely quickly.

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Exothermic reactions

▪ lose energy, releases heat, temperature of the surroundings increases 

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Problem Details

If a reaction is exothermic, then which of the following statements is always true? 

A. The products have lower potential energy than the reactants. 

B. Energy must be added for the reaction to proceed. 

C. The products have lower entropy (are more ordered) than the reactants.

D. It occurs extremely quickly.

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