C7 - Energy Changes Flashcards
Energy is always transferred in Chemical _________.
Reactions.
Reactions transfer Energy from the Reacting Chemicals to their surroundings called an ___________ Reaction.
Exothermic.
Some Reactions transfer Energy from the surroundings to Reacting Chemicals, known as an ____________ Reaction.
Endothermic.
What is an example of Exothermic Reactions?
Burning Fossil Fuels.
Neutralisation Reactions between Acids and Alkalis are ___________.
Exothermic.
Products of Exothermic ___________ have a Lower Energy Content than the Reactants.
Reactions.
Endothermic Reactions are less common than ___________ Reactions.
Exothermic.
Are Thermal Decompositions examples of Endothermic or Exothermic Reactions?
Endothermic.
In Endothermic __________, the Products have a Higher Energy Content than the ___________.
Reactions…Reactants…
Examples of Exothermic Reactions to help you warm up?
Hand and Body Warmers.
Crystallisation of a Super-Saturated ________ is used in re-useable warmers.
Solution.
Endothermic Reactions can be used to ____ things down.
Cool.
Endothermic changes can be used in Instant Cold Packs for _____ Injuries.
Sports.
To find out more about a Reaction, you must look at the Reaction _________.
Profile.
What do Reaction Profiles show?
Relative Difference in the Energy of Reactants and Products.
