What are the two main factors that determine the rate of a chemical reaction?
Factors Affecting the Rate of Reaction

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Chemistry, Science, Physics
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The color and smell of reactants
The type of catalyst used
The number of collisions and energy of collisions
The size and shape of the container
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does increasing the concentration of reactants affect the reaction rate?
It changes the color of the reactants
It decreases the reaction rate
It has no effect on the reaction rate
It increases the reaction rate
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the reaction rate when the surface area of a solid reactant is increased?
The reaction rate decreases
The reaction rate remains unchanged
The reaction rate increases
The reaction rate becomes unpredictable
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do smaller particles of a solid react faster than larger ones?
They have a higher mass
They are more colorful
They have a larger surface area to volume ratio
They are denser
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does increasing temperature affect the rate of reaction?
It increases the rate of reaction
It changes the state of reactants
It has no effect on the rate of reaction
It decreases the rate of reaction
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does a catalyst play in a chemical reaction?
It decreases the energy of collisions
It changes the reactants into different products
It provides an alternative pathway with lower activation energy
It increases the number of collisions
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT affected by the presence of a catalyst?
The activation energy
The number of collisions
The reaction rate
The energy of collisions
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