Rates of Reactions!
How do chemical reactions occur?
What affects the rate at which
chemical reactions occur?
How does changing the concentration of a
reactant affect the rate of the reaction?
What will happen when the
concentration of HCl
(hydrochloric acid) is increased?
How does changing the temperature of the
reactants affect the rate of the reaction?
What will happen to the intensity of the
glow stick when the temperature of
the water is increased?
How does changing the temperature of the
reactants affect the rate of the reaction?
What will happen to the
intensity of the glow
stick when the
temperature of the
water is increased?
How does changing the surface area of the
reactants affect the rate of the reaction?
What will happen to the combustion
of powdered milk when the surface
area is increased?
How does changing the surface area of the
reactants affect the rate of the reaction?
What will happen to
the combustion of
powdered milk when
the surface area is
increased?
How does adding a catalyst affect
the rate of the reaction?
What will happen to the decomposition of H2O2 if
potassium iodide - a catalyst - is added?
How does adding a catalyst affect
the rate of the reaction?
What will happen to
the decomposition of
H2O2 if potassium
iodide - a catalyst - is
added?
How to speed up chemical reactions:
Match the analogy to the method of
increasing the rate of reaction:
Make the hallways smaller
Increase the temperature
Decrease time between classes Increase the surface area of the
reactants
Students stop travelling in
packs
Decrease the volume of the
container
Matchmaker
Increase the concentration of
the reactants
Increase the number of
students at school
Add a catalyst