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Which of the following does NOT increase the rate of a reaction?
only change one variable at a time while keeping all other conditions the same
Use smaller marble chips
Speeds up the rate of a reaction without being used up
Both reactions occurred at the same speed.
Increasing the size of reactant particles
More product would be made in experiment B
they are not used up in a reaction
There are more particles so there are more collisions
To make an experiment a fair test you must
only change one variable at a time while keeping all other conditions the same
Use smaller marble chips
Speeds up the rate of a reaction without being used up
Both reactions occurred at the same speed.
Increasing the size of reactant particles
More product would be made in experiment B
they are not used up in a reaction
There are more particles so there are more collisions
Catalysts do not need to be replaced frequently because
only change one variable at a time while keeping all other conditions the same
Use smaller marble chips
Speeds up the rate of a reaction without being used up
Both reactions occurred at the same speed.
Increasing the size of reactant particles
More product would be made in experiment B
they are not used up in a reaction
There are more particles so there are more collisions
A catalyst...
only change one variable at a time while keeping all other conditions the same
Use smaller marble chips
Speeds up the rate of a reaction without being used up
Both reactions occurred at the same speed.
Increasing the size of reactant particles
More product would be made in experiment B
they are not used up in a reaction
There are more particles so there are more collisions
2 experiments using chemicals A and B are carried out. Reaction A finishes after 95 seconds and reaction B finishes after 1 minute 35 seconds. Which of the following is correct.
only change one variable at a time while keeping all other conditions the same
Use smaller marble chips
Speeds up the rate of a reaction without being used up
Both reactions occurred at the same speed.
Increasing the size of reactant particles
More product would be made in experiment B
they are not used up in a reaction
There are more particles so there are more collisions
Why does reaction rate increase as the concentration increases?
only change one variable at a time while keeping all other conditions the same
Use smaller marble chips
Speeds up the rate of a reaction without being used up
Both reactions occurred at the same speed.
Increasing the size of reactant particles
More product would be made in experiment B
they are not used up in a reaction
There are more particles so there are more collisions
How could I make the reaction between acid and marble chips faster?
only change one variable at a time while keeping all other conditions the same
Use smaller marble chips
Speeds up the rate of a reaction without being used up
Both reactions occurred at the same speed.
Increasing the size of reactant particles
More product would be made in experiment B
they are not used up in a reaction
There are more particles so there are more collisions
Experiment A uses excess acid and 5g of chalk powder, experiment B uses excess acid and 10g of chalk powder
only change one variable at a time while keeping all other conditions the same
Use smaller marble chips
Speeds up the rate of a reaction without being used up
Both reactions occurred at the same speed.
Increasing the size of reactant particles
More product would be made in experiment B
they are not used up in a reaction
There are more particles so there are more collisions
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