Have an account?
Skip to Content
Build your own quiz
Suggestions for you
10 questions
Show Answers
See Preview
- 1. Multiple Choice
What has to happen before a reaction takes place?
Product molecules must collide
Product molecules must collide with enough power
Reacting molecules must collide with enough energy
Molecules must collide with enough power
- 2. Multiple Choice
Explain how increasing concentrations increases the rate of a reaction
Less collisions occur
More movement
More collisions occur
Less movement
- 3. Multiple Choice
What change in condition increases the speed of the reacting molecules?
Decreasing temperature
Increasing temperature
Decreasing energy
Increasing power
- 4. Multiple Choice
How can you increase the surface area of a solid?
Divide the solid into smaller pieces
Get more solid
Turn it into a gas
- 5. Multiple Choice
Which change in condition only affects reactions involving gases?
Temperature
Surface area
Pressure
Concentration
- 6. Multiple Choice
What is the activation energy in a reaction?
The energy needed for products to be formed
The energy needed to break products into reactants
The minimum energy needed to make products
The minimum energy needed by reactants for them to react
- 7. Multiple Choice
What does a catalyst do?
Speeds up reactants
Speeds up a chemical reaction
Speeds up products
Speeds up particles
- 8. Multiple Choice
What do you call a biological catalyst?
Product
Reactant
Biological reaction
Enzyme
- 9. Multiple Choice
What is/are the catalyst(s) in catalytic converters in cars?
Platinum
Phosphorous
Palladium
Phosphorous and platinum
Platinum and palladium
- 10. Multiple Choice
The graph that shows how catalysts lower activation energy is known as what?
Reaction profile
Energy graph
Catalysing reaction graph
Overall change of energy grapg
- Answer choicesTagsAnswer choicesTags