Equilibrium

What are the two factors to look for when determining if the reaction is at equilibrium?

• Forward reaction rate is faster than the reverse and concentrations are equal

• Forward and reverse reaction rates are equal and concentration is conctant

• Forward and revers reaction rates are equal and concentration is equal

• Forward reaction rate is faster than the reverse and concentration is equal

Tags

NGSS.HS-PS1-6

This symbol indicates that a reaction is ____________

• reversible

• irreversible

Tags

NGSS.HS-PS1-6

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

Tags

NGSS.HS-PS1-6

At what time the reaction reached equilibrium?

• t₁

• t₂

• t₃

• t₄

Tags

NGSS.HS-PS1-6

Identify the labels (a) and (b) on the graph.

• a is concentration of reactants and b is the concentration of product

• a is concentration of product and b is the concentration of reactant

• a is the volume of reactants and b is the volume of product

• a the mass of reactants and b is the mass of product

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

Define chemical equilibrium.

• A reaction is reversible.

• The concentration of the reactants is equal to the concentration of the products.

• The rate of a forward reaction is equal to the rate of the reverse reaction.

• The reaction stops and no further change in concentration occurs.

Tags

NGSS.HS-PS1-6

How do catalysts increase the rate of reaction?

• The frequency of collisions is the increased

• the activation energy is lowered

• the energy of collisions is increased

• Both the frequency and energy of collisions is increased

Tags

NGSS.HS-PS1-5

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

• A

• B

• AB

• A + B

Tags

NGSS.HS-PS1-2

2A + 3B  <---->  2AB
The reverse reaction points towards the __________.

• left

• right

• up

• down

Tags

NGSS.HS-PS1-6

If a salt solution is at equilibrium, it is

• unsaturated

• saturated

• super-saturated

• salty