
Chemical Reactions Factors Quiz
Authored by Jesse Vela
Chemistry
9th Grade
10 Questions
NGSS covered
Used 25+ times

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are catalysts in chemical reactions?
Catalysts in chemical reactions are substances that decrease the rate of a reaction without being consumed in the process.
Catalysts in chemical reactions are substances that only work in specific types of reactions and are not widely applicable.
Catalysts in chemical reactions are substances that have no effect on the rate of a reaction and are consumed in the process.
Catalysts in chemical reactions are substances that increase the rate of a reaction without being consumed in the process.
Tags
NGSS.HS-PS1-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do catalysts affect the rate of chemical reactions?
Catalysts only work for certain types of chemical reactions and not all.
Catalysts decrease the rate of chemical reactions by increasing the activation energy required for the reaction to occur.
Catalysts increase the rate of chemical reactions by lowering the activation energy required for the reaction to occur.
Catalysts have no effect on the rate of chemical reactions.
Tags
NGSS.HS-PS1-5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of temperature in chemical reactions?
Temperature has no effect on chemical reactions
Temperature only affects the color of the chemicals involved
Temperature decreases the kinetic energy of the molecules, slowing down the reaction
Temperature can affect the rate of a chemical reaction by increasing the kinetic energy of the molecules, leading to more frequent and energetic collisions.
Tags
NGSS.HS-PS1-5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does temperature affect the rate of chemical reactions?
Decreasing temperature increases the rate of chemical reactions
Temperature has no effect on the rate of chemical reactions
Increasing temperature decreases the rate of chemical reactions
An increase in temperature generally increases the rate of chemical reactions, while a decrease in temperature slows down the rate of reactions.
Tags
NGSS.HS-PS1-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is concentration in chemical reactions?
Concentration is the speed of a chemical reaction
Concentration is the temperature at which a chemical reaction occurs
Concentration refers to the color of the substance
Concentration in chemical reactions refers to the amount of a substance present in a given volume of solution.
Tags
NGSS.HS-PS1-5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does concentration affect the rate of chemical reactions?
Increasing the concentration of reactants generally leads to an increase in the rate of chemical reactions, as there are more reactant particles available to collide and react with each other.
Concentration has no effect on the rate of chemical reactions
Decreasing the concentration of reactants generally leads to an increase in the rate of chemical reactions
Increasing the concentration of reactants generally leads to a decrease in the rate of chemical reactions
Tags
NGSS.HS-PS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is surface area in chemical reactions?
Surface area in chemical reactions refers to the weight of the reactants
Surface area in chemical reactions refers to the volume of the reactants
Surface area in chemical reactions refers to the color of the reactants
Surface area in chemical reactions refers to the total area of the solid reactants that are available for the reaction to occur. It affects the rate of reaction by influencing the frequency of collisions between reactant particles.
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