C2 Exothermic and Endothermic Flashcards
What is the reversible reaction symbol?
What is a reversible reaction?
Reaction can go in both directions
Both the forward and reverse reactions can take place
Give an example of an exothermic reaction?
Combustion ( burning)
Acids with alkalis
Magnesium with acid
Respiration
What happens to the temperature in an exothermic reaction?
Temperature increases
(feels warm)
What happens to the temperature in an endothermic reaction?
Temperature decreases (feels cold)
What is an exothermic reaction?
Reaction that gives out heat energy
( products have less stored energy than reactants )
What is an endothermic reaction?
Reactions that takes in heat energy (from the surroundings)
( products have more stored energy than reactants )
Give an example of an endothermic reaction?
Potassium chloride with water
Citric acid and sodium hydrogen carbonate ( sherbet )
photo synthesis
cooking
electrolysis
polymerization