Chemistry endothermic and exothermic Flashcards
1
Q
What is an exothermic reaction?
A
The energy is transferred to the surrounds (giving out heat)
2
Q
Name three exothermic changes?
A
Some chemical reactions
Melting ad boiling
Dissolving substances in water
3
Q
What are changes in endothermic reactions?
A
Chemical reaction
Freezing and condensing
Dissolving one substances in water
4
Q
What is an endothermic reaction?
A
When energy is absorbed, the temperature decreases and there is more energy in the products than reactants. When energy is released in an endothermic reaction, the temperature of the reaction mixture increases. There is more energy in the reactants than products
