Chemical Equilibrium
Authored by Fred Frazee
Chemistry
11th Grade
NGSS covered
Used 1K+ times
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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Such reactions which continue in both directions are called:
Irreversible reactions
Reversible reactions
Non-reactive reactions
dynamic reactions
Tags
NGSS.HS-PS1-6
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A complete reaction is in which:
All the reactants convert into products
All the reactants do not convert into products
Half reactants convert into products
only 10% reactants convert into products
Tags
NGSS.HS-PS1-7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2SO2(g)+O2(g)⇌2SO3(g)
Removing O2(g) will
Tags
NGSS.HS-PS1-6
NGSS.HS-PS1-5
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
2SO2(g)+O2(g)⇌2SO3(g)
Adding SO2(g) will
Tags
NGSS.HS-PS1-6
NGSS.HS-PS1-5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
At elevated temperatures ammonium carbonate, NH2COONH4, is in equilibrium with NH3 and CO2 according to the equation;
NH2COONH4(s) ↔ 2 NH3(g) + CO2(g)
What is the equilibrium expression for this reaction?
K = 2 [NH3][CO2]
[NH2COONH4]
K = [NH3]2[CO2]
[NH2COONH4]
K = 2 [NH3][CO2]
K = [NH3]2[CO2]
Tags
NGSS.HS-PS1-6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Changes in pressure will only affect substances that are in the __________ state.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the equilibrium-constant expression for
CO2(g) + H2(g) ↔ CO(g) + H2O(l)
Tags
NGSS.HS-PS1-6
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