Flashcards in Chapter 8 Deck (10):
What are the two ways of measuring the rate of reaction?
- The rate at which a reactant is used up
- The rate at which a product is formed
What is the equation for the rate of reaction?
amount of reactant used or amount of product formed / time taken
When will the rate of reaction increase?
- temperature increases
- concentration of a dissolved reactant is increased
- solid reactants are broken into smaller pieces
- a catalyst is used
What must happen for a chemical reaction to occur?
the reactant particles must collide
What happens if a collision has too little energy?
a chemical reaction doesn't take place
What does the rate of reaction depend on?
the rate of successful collisions between the reactant particles
What happens if there are a lot of successful collisions?
the faster the rate of reactant
What happens to the atoms when molecules collide?
When a collision is successful what must the particles have and what is it called?
they must possess enough energy, called the activation energy