PS 7.4 Formative
Quiz
•
Science
•
9th Grade
•
Practice Problem
•
Easy
Standards-aligned
Mike Hall
Used 10+ times
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10 questions
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1.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
A _____ is the rate at which reactants change into products over time.
Tags
NGSS.HS-PS1-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An decrease in temperature will _____ the reaction rate.
increase
decrease
not affect
Tags
NGSS.HS-PS1-5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An increase in surface area will _____ the reaction rate.
increase
decrease
not affect
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Stirring the reactants will generally _____ the reaction rate.
increase
decrease
not affect
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
A _____ is a substance that affects the reaction rate without being used up in the reaction.
Tags
NGSS.HS-PS1-5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Increasing the concentration of a reactant will _____ the reaction.
increase
decrease
not affect
Tags
NGSS.HS-PS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chemical reactions involve collisions between particles of reactants. If these collisions occur more frequently, then the reaction rate will _____.
increase
decrease
not change
Tags
NGSS.HS-PS1-5
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