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RATE AND EXTENT OF CHEMICAL CHANGE

Across
A graph that shows how the energy in a reaction changes as the reaction progresses (also known as energy level diagram), (two words).
The theory that in order for a reaction to occur, particles must collide with sufficient energy.
The variable in an experiment that is changed.
The amount of substance in a certain volume of solution.
A substance that reacts in a chemical reaction.
This piece of equipment is used when measuring rate of reaction for change in mass (two words).
The idea that if the conditions of a reaction are changed when a reversible reaction is at equilibrium, the system will try to counteract the change (three words).
Increasing this in a chemical reaction increases collisions between particles and therefore the rate. For Example using marble chips (two words).
This piece of equipment is used to collect gas when measuring rate of reaction.
A reaction where the products of the reaction can themselves react to produce the original reactants.
Down
The minimum amount of energy that reactant particles must have when they collide in order to react (two words).
How fast the reactants in a reaction are changed into products (three words).
A collision between particles that results in a chemical reaction.
A reaction that transfers energy to the surroundings.
Increasing this increases rate as there are more particles in a given volume.
Increasing this during a chemical reaction gives the particles more energy.
The point at which the rates of the forward and backwards reactions in a reversible reaction are the same.
Formed when a cloudy solution appears during the disappearing cross experiment.
Provides an alternative pathway with a lower activation energy. It is not used up during a chemical reaction so not found in the equation.
The type of variable that is measured.