Simple Equilibria and Acid-Base reactions: Latest Examination Questions with
The Verified A+ Graded Answers // 2026 Latest Edition.
What is an example of an irreversible In chemical reactions, reactants produce products. If magnesium
reaction? is burnt in air, it forms magnesium oxide and the reactants are
converted into products. These reactions are irreversible.
What are reversible reactions? Some reactions are reversible meaning as reactants form
products, products change back into reactants at the same
time. These reversible reactions are indicated by the '⇌'
sign. We can say that in a reversible reaction, if it is
endothermic in one direction, it must be exothermic in
the other direction.
What is dynamic equilibrium? Dynamic equilibrium is the equilibrium that exists when the
rate of the forward reaction equals the rate of the reverse
reaction. There is no observable change but on a molecular
level the system is in constant motion because as fast as the
reactants are changed into products, the products are being
converted back to reactants. The equilibrium is said to be
dynamic because the reactants and products are constantly
interacting.
What are the features of dynamic - It is dynamic (constantly interacting) at the molecular or ionic
equilibrium? level
- Both the forward and reverse rates are equal
- It is a closed system i.e a system where substances cannot leave
or enter.
- It has macroscopic properties (properties that can be
measured and observed without the need for a microscope)
e.g the concentrations of the reactants and products stay
the same.
What is the position of equilibrium? The position of equilibrium in an equilibrium mixture refers to
the proportion of reactants to products. It is possible to change
the position of an equilibrium so that there are more products
, than reactants.
The Verified A+ Graded Answers // 2026 Latest Edition.
What is an example of an irreversible In chemical reactions, reactants produce products. If magnesium
reaction? is burnt in air, it forms magnesium oxide and the reactants are
converted into products. These reactions are irreversible.
What are reversible reactions? Some reactions are reversible meaning as reactants form
products, products change back into reactants at the same
time. These reversible reactions are indicated by the '⇌'
sign. We can say that in a reversible reaction, if it is
endothermic in one direction, it must be exothermic in
the other direction.
What is dynamic equilibrium? Dynamic equilibrium is the equilibrium that exists when the
rate of the forward reaction equals the rate of the reverse
reaction. There is no observable change but on a molecular
level the system is in constant motion because as fast as the
reactants are changed into products, the products are being
converted back to reactants. The equilibrium is said to be
dynamic because the reactants and products are constantly
interacting.
What are the features of dynamic - It is dynamic (constantly interacting) at the molecular or ionic
equilibrium? level
- Both the forward and reverse rates are equal
- It is a closed system i.e a system where substances cannot leave
or enter.
- It has macroscopic properties (properties that can be
measured and observed without the need for a microscope)
e.g the concentrations of the reactants and products stay
the same.
What is the position of equilibrium? The position of equilibrium in an equilibrium mixture refers to
the proportion of reactants to products. It is possible to change
the position of an equilibrium so that there are more products
, than reactants.
