Chemical Equilibrium

Changes in pressure will only affect substances that are in the __________ state.

• gaseous
• liquid
• solid
• plasma

This symbol indicates that the reaction is a ____________reaction.

• reversible

• completion

• double displacement

• synthesis

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 equilibrium of the reaction will ___________.

• shift left

• shift right

• not shift either direction

For the reaction...

N_{2 (g)} + 3 H_2(g) ⇌ 2 NH_{3 (g)}

If the pressure in the system is increased, which substance(s) will increase in concentration?

• N₂

• H₂

• N₂ and H₂

• NH₃

Tags

NGSS.HS-PS1-6

2SO₂(g)+O₂(g)⇌2SO₃(g)

If O₂(g) is removed, the reaction will

• shift right

• shift left

• NOT shift

2SO₂(g)+O₂(g)⇌2SO₃(g)

If SO₃(g) is removed, the reaction will

• shift right

• shift left

• NOT shift

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.

Tags

NGSS.HS-PS1-6

H₂(g)+Cl₂(g)⇌2HCl(g)

If Cl₂(g) is removed, the reaction will

• shift right

• shift left

• NOT shift

H₂(g)+Cl₂(g)⇌2HCl(g)

If the pressure is increased, the reaction will

• shift right

• shift left

• NOT shift