
Reaction Rates
Presentation
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Easy
Standards-aligned
Michaela Bratsch
Used 105+ times
FREE Resource
11 Slides • 16 Questions
1
Reaction Rates
How fast a reaction goes
2
3
4
Multiple Choice
What is the rate of reaction?
How fast a reaction is
How big a reaction is
How loud a reaction is
How much gas a reaction produces
5
6
7
Multiple Choice
The minimum amount of energy needed for colliding particles to react is called
Chemical Energy
Kinetic Energy
Activation Energy
Potential Energy
8
Multiple Choice
The ______________is required to break the bonds of the reactants.
Carbonic energy
Activation energy
Plutonic energy
Resting energy
9
Multiple Choice
In an exothermic reaction, heat is ...
taken in
given out
10
Multiple Choice
Activation energy is required to start a chemical reaction. What is activation energy?
The energy needed for a reaction to occur
The minimum amount of energy needed for a reaction to potentially occur
The energy added by a catalyst
The energy possessed by the products
11
12
13
Multiple Choice
Why don't all collisions between particles cause a reaction?
the particles also need to collide with a catalyst
not all the particles collide with enough energy
not all the particles collide at a high enough temperature
the particles need to collide with each other twice
14
Multiple Choice
What makes an effective collision?
When molecules collide.
When molecules collide with the proper orientation.
When molecules collide with proper orientation and enough kinetic energy.
High Temperature.
15
16
17
18
19
Multiple Choice
A substance that increases speed of chemical reaction without being being changed is called:
Catalyst
Acid
Base
pressure
20
Multiple Choice
Grinding a seltzer tablet into powder increases the rate of reaction due to increased
concentration
surface area
temperature
reactants
21
Multiple Choice
Why does a higher temperature increase the rate of a reaction?
it increases both the frequency and energy of particle collisions
it only increases the frequency of particle collisions
it only increases the energy of particle collisions
it reduces the activation energy of the reaction
22
Multiple Choice
Why does a higher concentration increase the rate of reaction?
it increases the amount of reactants
it lowers the activation energy
it increases the energy of particle collisions
it increases the frequency of particle collisions
23
Multiple Choice
What does NOT happen when the temperature is increased?
Particles collide more often
Particles collide with more energy
Particles move faster
More particles collide in the correct orientation
24
Multiple Choice
The following graph shows two different reaction pathways for the same overall reaction at the same temperature. Which pathway is slower and why?
Red, because the activation energy is larger
Blue, because the activation energy is lower
both reaction progress at the same rate
25
Multiple Choice
How does a catalyst work in speeding up a reaction?
By lowering the activation energy or reaction
by giving them more energy
by making them more available
26
Multiple Choice
A temperature increase causes the particles
to slow down
to move faster
have proper orientation
hit in the right order
27
Multiple Select
Check four factors that affects the rate of a reaction
temperature
concentration
surface area
volume
catalysts
Reaction Rates
How fast a reaction goes
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