Dynamic Equilibrium Science

This symbol indicates that a reaction is ____________

• reversible
• irreversible

Which of the following is incorrect? 
A dynamic equilibrium can be achieved...

• From 100% reactants
• From 100% products
• In a closed system
• In an open system

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
• Chemical Constant
• Chemical Reaction

Define chemical equilibrium.

• A reaction is reversible.

• A state where the concentration of the reactants is equal to the concentration of the products.

• A state where the rate of a forward reaction is equal to the rate of the reverse reaction.

• A state where the reaction stops and no further change in concentration occurs.

Tags

NGSS.HS-PS1-6

Around what time does the reaction reach equilibrium?

• 25 min

• 45 min

• 70 min

• 80 min

Tags

NGSS.HS-PS1-5

At what time on the graph will the reaction reach equilibrium?

• t₁

• t₂

• t₃

• t₄

Tags

NGSS.HS-PS1-6

What is the relationship between the forward rate of reaction and the reverse rate of reaction in a reversible reaction at equilibrium?

• forward is greater

• reverse is greater

• the two are equal

• can not determine unless you know the rate law and k.

2A + 3B <----> 2AB

The forward reaction forms the substance __________.

• A

• AB

• B

• A + B

Which is the reactant and why?

• A, it's concentration is decreasing

• A, it's concentration is increasing

• B, it's concentration is decreasing

• B, it's concentration is increasing

Tags

NGSS.HS-PS1-5

At what time on the graph will the reaction reach equilibrium?

• t₁

• t₂

• t₃

• t₄