What is Enthalpy?
Chemistry - Enthalpy

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•
Chemistry
•
10th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
Energy stored in the chemical bonds in a substance.
2.
FLASHCARD QUESTION
Front
What does a negative enthalpy change indicate?
Back
The reaction releases energy to the surroundings.
3.
FLASHCARD QUESTION
Front
How do you calculate the enthalpy change of a reaction?
Back
ΔH = ΔH_products - ΔH_reactants.
4.
FLASHCARD QUESTION
Front
In an exothermic reaction, where is the heat energy found?
Back
On the products side of the equation.
5.
FLASHCARD QUESTION
Front
What happens to the temperature of the surroundings in an exothermic reaction?
Back
The temperature of the surroundings rises.
6.
FLASHCARD QUESTION
Front
What is the enthalpy change for an endothermic reaction?
Back
It is positive, indicating energy is absorbed from the surroundings.
7.
FLASHCARD QUESTION
Front
What is the significance of ΔH in a chemical reaction?
Back
It represents the change in enthalpy during the reaction.
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