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- 1. Multiple ChoiceThe rate of a chemical reaction is NOT affected by which of the following:temperatureconcentrationparticle size (surface area)All of these affect reaction rates
- 2. Multiple ChoiceThe rate of a reaction increases as temperature__________________.DecreasesIncreasesStays the Same
- 3. Multiple ChoiceA ______________ is a substance that increases the rate of a reaction without being used up during the reaction.catalystproductreactantsolute
- 4. Multiple ChoiceThe ___________ the surface area of the reactants, the faster the reaction rate.largersmaller
- 5. Multiple ChoiceIncreasing the temperature will increase the kinetic energy of particles, therefore increasing the collisions between particles.falsetrue
- 6. Multiple ChoiceUsually lowering the temperature will slow down a reaction.falsetrue
- 7. Multiple ChoiceIncreasing the concentration of the reactants will slow down the reaction.falsetrue
- 8. Multiple Choice
Increasing the ____ causes the particles (atoms
or molecules) of the reactants to move more quickly so that
they collide with each other more frequently and with more
energy.
Catalyst
Surface Area
Temperature
Concentration
- 9. Multiple Choice
________ is the measure of how much area of an
object is exposed.
Surface Area
Catalyst
Temperature
Concentration
- 10. Multiple Choice
Pick the TWO (2) options that will INCREASE the rate of a reaction.
Reducing Heat
Adding Catalyst
Adding Heat
Removing Catalyst
- 11. Multiple Choice
Which of the following will lower the rate
of reaction?
adding an enzyme to the reaction
decreasing the temperature from 40°C to
10°C
breaking a chunk of calcium up into
smaller pieces
increasing the amount of solute
dissolved in a solution
- 12. Multiple Choice
An enzyme's role is to...
speed up biological chemical reactions.
balance chemical reactions.
reorganize groups of atoms into different substances.
tell the cell when to start making more energy.
- 13. Multiple Choice
Water in a lake freezing is an example of a chemical change.
True
False
- 14. Multiple Choice
Which of the following would be considered a physical change?
Cutting paper
pH test
Burning marshmellow
Roasting a Turkey
- 15. Multiple Choice
Is this an example of corrosion?YesNo - 16. Multiple Choice
What conditions are required for rusting?
water only
oxygen only
water and oxygen
- 17. Multiple Choice
What is oxidation?
A reaction involving oxygen
A reaction involving non-metals
- Answer choicesTagsAnswer choicesTags