Curriculum
Course: EST 2 Chemistry
time left:
:
:
Login

Curriculum

EST 2 Chemistry

Structure of Matter

0/11

States of Matter

0/7

Reaction Types

0/9

Stoichiometry

0/7

Equilibrium and Reaction Rates

0/7

Thermochemistry

0/5

Descriptive Chemistry

0/7

Laboratory Skills

0/5
Quiz

Reaction rates – Check yourself

Submit quiz
Once you submit, you will no longer be able to change your answers. Are you sure you want to submit the quiz?
Cancel Submit

Reaction rates EST Chemistry check yourself quiz: free practice for EST 2 Chemistry. Work through this Reaction rates EST Chemistry check yourself quiz and get instant feedback on every answer. If you get stuck, review the 5.2 Reaction rates lesson. More practice: EST 2 Chemistry — all units. Syllabus: OpenStax free science textbooks.

  • Questions count: 10
  • Passing grade: B+
  • Time limit: 10 minutes
Start Quiz
1.
A catalyst increases rate by
raising temperature
lowering activation energy
increasing ΔH
being consumed
2.
Rate = k[A]². Tripling [A] increases rate by
3
6
9
27
3.
Powdered zinc reacts faster than a lump because of
higher mass
greater surface area
lower temperature
catalyst
4.
The slowest step in a mechanism is the
intermediate
rate-determining step
catalyst
product
5.
Which statement best describes Reaction rate?
Minimum energy needed for a reaction.
The exponent of a concentration in the rate law, found by experiment.
Change in concentration per unit time.
The unstable arrangement at the peak of the energy profile.
6.
Which statement best describes Collision theory?
Particles must collide with enough energy and correct orientation to react.
Rate = k[A]m[B]n.
Speeds a reaction by providing a lower-Ea pathway; not consumed.
The exponent of a concentration in the rate law, found by experiment.
7.
Which statement best describes Activation energy (Ea)?
The exponent of a concentration in the rate law, found by experiment.
Minimum energy needed for a reaction.
The slowest step in a mechanism.
Rate = k[A]m[B]n.
8.
Which statement best describes Activated complex?
Minimum energy needed for a reaction.
The unstable arrangement at the peak of the energy profile.
Particles must collide with enough energy and correct orientation to react.
The slowest step in a mechanism.
9.
Which statement best describes Catalyst?
Speeds a reaction by providing a lower-Ea pathway; not consumed.
The slowest step in a mechanism.
Change in concentration per unit time.
Minimum energy needed for a reaction.
10.
Which statement best describes Rate law?
Rate = k[A]m[B]n.
Speeds a reaction by providing a lower-Ea pathway; not consumed.
Particles must collide with enough energy and correct orientation to react.
Change in concentration per unit time.
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
Part of Equilibrium and Reaction Rates — see every lesson and quiz in this unit.
Accepted payment methods