Our brand new solo games combine with your quiz, on the same screen

Correct quiz answers unlock more play!

New Quizalize solo game modes
68 questions
Show answers
  • Q1

    Under the collision theory, the particles must collide with  ____ and ____ for a reaction to occur.

    sufficient energy and correct orientation

    sufficient rate and sufficient energy

    sufficient catalyst and sufficient energy

    sufficient surface area and correct orientation

    30s
  • Q2

    More collisions correspond to a: 

    Slower reaction rate

    Faster reaction rate  

    Constant reaction rate 

    None of the above

    30s
  • Q3

    Why does a higher temperature increase the rate of a reaction?

    it only increases the frequency of particle collisions

    it reduces the activation energy of the reaction

    it increases both the frequency and energy of particle collisions

    it only increases the energy of particle collisions

    30s
  • Q4

    In the chemical reaction, the successful formation of products depends on the following factors EXCEPT:

    The collisions between reacting molecules must be effective.

    The energy of colliding molecules must be equal to or more than the activation energy

    The colliding molecules must approach each other in the right orientation

     Collision between molecules must produce sufficient energy to overcome the activation energy

    30s
  • Q5

    The catalyst alters the rate of a chemical reaction by,

    providing an alternative pathway with a lower Ea

    increasing the frequencies of collisions between molecules

    changing the products formed in the direction of the reaction

    providing a surface on which the molecules react

    30s
  • Q6

    The ____________ states that atoms, ions, or molecules must collide in order to react.

    transition state

    collision theory

    activation energy

    rate law

    30s
  • Q7

    A ______________ is a substance that increases the rate of a reaction without being used up during the reaction.

    reactant

    solute

    catalyst

    product

    30s
  • Q8

    Increasing the temperature will increase the kinetic energy of particles, therefore increasing the collisions between particles.

    true
    false
    True or False
    30s
  • Q9

    Which of the following best describes why increasing temperature increase reaction rate?

    Collisions become more frequent and more energetic.

    Collisions become more frequent.

    Collisions become more energetic.

    Activation energy is reduced.

    30s
  • Q10

    To measure rate of reaction, we can monitor the concentration change in which of the following?

    Reactants or products

    Reactants only

    Products only

    30s
  • Q11

    What is the activation energy?

    The energy of the reactants

    The minimum energy needed by the reactants to form the products.

    The energy lost in the reaction

    The energy of the products

    30s
  • Q12

    What is the best definition of rate of reaction?

    The rate at which all the reactants are used up

    The time it takes for one of the reactants to be used up

    The change in concentration of a reactant/product per unit time

    The time it takes to use up all the reactants

    30s
  • Q13

    What is another name for enzymes?

    microorganism

    biological/natural catalysts

    inorganic catalysts

    chemical catalysts

    30s
  • Q14

    If the reactant particles collide with less than the activation energy, the particles will be rebound, and no reaction will occur. (BONUS)

    true
    false
    True or False
    30s
  • Q15

    A catalyst be regenerated or used again and again

    true
    false
    True or False
    30s

Teachers give this quiz to your class