Definitions

Cards (9)

What is collision theory?
Collision theory is a theory that explains how chemical reactions occur by stating that reactions can only happen when particles collide with sufficient energy and proper orientation.
What is activation energy?
The minimum energy, that particles must collide with for a reaction to take place
What is exothermic?
A reaction that transfers to the surroundings
What is endothermic?
A reaction that takes in energy from the surroundings
What is a reversible reaction?
A reaction in which the products can re-form the reactants
What does hydrated mean in chemistry?
A substance that contains water in its crystals
What does anhydrous mean?
A substance that does not contain water
What does Equilibrium mean?
The point in a reversible reaction at which the forward and reverse reaction happen at the same rate. The amount of substances present in the reacting mixture remain constant. This happens in a closed system
What is the Le Châtelier’s principal?
when a change in conditions is introduced to a system at equilibrium, the position of equilibrium shifts so as to cancel out the change