Energy changes Flashcards
1
Q
What is a reaction?
A
Bonds between atoms in reactants are broken and re-arranged to form new bonds and create new products.
2
Q
What happens in an exothermic reaction?
A
Exothermic reactions transfer energy from the reacting molecules to the surroundings . (Temperature around increase)
3
Q
What are some examples of an exothermic reaction?
A
Combustion, Neutralisation and Oxidation.
4
Q
What happens in an endothermic reaction?
A
These reactions take in energy from the surroundings.
5
Q
Examples of endothermic reaction ase:
A
Photosynthesis, Citric acid(Weak) + Baking soda and Thermal decomposition.
6
Q
What is an energy profile diagram?
A
An energy profile diagram represents energy change that take place in reactions.
