If the reaction between two solutions has a positive enthalpy change, which of the following best describes the reaction? - It is exothermic and heat is added to the system. - It is endothermic and heat is added to the system. - It is exothermic and heat is lost to the surroundings. It is endothermic and heat is lost to the surroundings.

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If the reaction between two solutions has a positive enthalpy change, which of the following best describes the reaction? - It is exothermic and heat is added to the system. - It is endothermic and heat is added to the system. - It is exothermic and heat is lost to the surroundings. It is endothermic and heat is lost to the surroundings.

Chemistry
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Ask yourself: what does a positive enthalpy change tell you about a reaction?

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I believe it is the second choice
Yes! positive enthalpy change , the reaction is endothermic, the final state or products have more energy than the reactants. When you do the delta, or difference between final minus the initial state of the reaction you get a positive value.

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