AP Chemistry--Equilibrium Basics
Authored by Holly Gannon
Chemistry
10th Grade - University
NGSS covered
Used 407+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Equilibrium for 2CrO42- + 2H+→Cr2O72- + H2O. What happens when OH- ions are added to the system?
Position of equilibrium will shift to right
Color of system will turn from orange to yellow
Kc will decrease
OH- ions will not react, and thus no change is seen.
Tags
NGSS.HS-PS1-6
NGSS.HS-PS1-5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Given the Kc for a forward reaction, how can you find Kc for the reverse reaction?
Divide Kc by 1
Divide 1 by Kc
Square Kc
Take the square root of Kc
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
This endothermic reaction is at equilibrium.
If its temperature is increased (at constant volume and pressure), which way will the equilibrium shift?
To products (right)
To reactants (left)
Tags
NGSS.HS-PS1-6
NGSS.HS-PS1-5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Le Chatelier's Principle states that if a chemical system at equilibrium is stressed,
Tags
NGSS.HS-PS1-6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
This symbol indicates that a reaction is ____________
Tags
NGSS.HS-PS1-6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When the rate of the forward reaction is equal to the rate of backward reaction, the system is said to be in
Tags
NGSS.HS-PS1-6
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
For the reaction...
SO2 + O2 <−> SO3
If the concentration of SO2 is increased, the system will shift ___________.
left
right
left and right
neither left nor right
Tags
NGSS.HS-PS1-6
NGSS.HS-PS1-5
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