Chemical Equilibrium

This symbol indicates that a reaction is ____________

• reversible
• irreversible

When the rate of the forward reaction is equal to the rate of backward reaction, the system is said to be in

• Chemical Equilibrium
• Chemical Balance
• Stoichiometry
• Chemical Reaction

Tags

NGSS.HS-PS1-6

For the reaction...

SO₂ + O₂ ⇌ SO₃

If the concentration of SO₂ is increased, the reaction will respond by...

• Making more O2

• making more SO3

• decreasing the amount of SO3

• heating up

Tags

NGSS.HS-PS1-5

2SO₂(g)+O₂(g)⇌2SO₃(g)
Removing O₂(g) will

• shift equilibrium right
• shift equilibrium left
• increase pressure
• have no change

2SO₂(g)+O₂(g)⇌2SO₃(g)

Adding SO₃(g) will cause the reaction to...

• produce more SO3

• produce more SO2 + O2

• increase K

Tags

NGSS.HS-PS1-5

Which of the following is NOT true at equilibrium?

• The forward and reverse reactions proceed at the same rate.
• The concentrations of reactants and products do not change.
• The concentration of the reactants is equal to the concentration of the products.
• The forward and reverse reactions continue to occur.

H₂(g)+Cl₂(g)⇌2HCl(g)

Removing Cl₂(g) will

• shift equilibrium right

• shift equilibrium left

• increase pressure

• have no change

Tags

NGSS.HS-PS1-5

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

For the reaction...
heat  +  N₂  +  O₂  ↔  2NO
If the heat is added to the chemical system, the equilibrium will shift _______.

• left
• right
• left and right
• neither left nor right

2A + 3B  <---->  2AB
The forward reaction forms the substance __________.

• A
• B
• AB
• A + B