1. Reaction Rates

2. Chapter 7 – Chemical Reactions
The law of conservation of energy states that the amount of energy before and after a reaction is the same.
A reaction rate is the rate at which reactants change into products over time.
They tell us how fast a reaction is going.

3. Chapter 7 – Chemical Reactions
Factors that affect reaction rates include temperature, surface area, concentration, stirring, and catalysts.
Temp: increases rxn rates (ex: egg)
Surface area: increases rxn rates (ex: newspaper)

4. Chapter 7 – Chemical Reactions
Stirring: increases rxn rates (ex: washing machine)
Concentration: increases rxn rates (ex: dyeing materials)
A catalyst is a substance used to speed up a reaction without being used up in the reaction.
Catalysts: increase rxn rates (ex: EHarmony.com)

5. Chapter 7 – Chemical Reactions
A reversible reaction is a reaction in which the conversion of reactants into products and conversion of products into reactants occurs simulatneously.
A chemical equilibrium is established between the forward and reverse reactions.

6. Chapter 7 – Chemical Reactions
Factors that affect chemical equilibrium are temperature, pressure, and concentration.