Chemical equilibrium

Chemical equilibrium

11th Grade

20 Qs

quiz-placeholder

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Chemical equilibrium

Chemical equilibrium

Assessment

Quiz

Chemistry

11th Grade

Medium

NGSS
HS-PS1-6, HS-PS1-7, HS-PS1-5

Standards-aligned

Created by

Sumathi Raja

Used 61+ times

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20 questions

Show all answers

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
shift equilibrium right
shift equilibrium left
decrease temperature
have no change

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2SO2(g)+O2(g)⇌2SO3(g)
Adding SO2(g) will
shift equilibrium right
shift equilibrium left
increase rate of reaction
have no change

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

5.

MULTIPLE CHOICE QUESTION

2 mins • 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.
gaseous
liquid
solid
plasma

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the equilibrium-constant expression for 
CO2(g) + H2(g) ↔ CO(g) + H2O(l)
Kc= [CO][H2O] / [CO2][H2]  
Kc= [CO2][H2] / [CO]
Kc= [CO2][H2] / [CO][H2O]
Kc= [CO] / [CO2][H2]  

Tags

NGSS.HS-PS1-6

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