Reversible reactions proceed in both forward and backward directions.
True
Which arrow direction indicates the forward reaction in a reversible reaction equation?
Left to right
Reversible reactions maintain constant concentrations of reactants and products at equilibrium.
True
What does the left arrow in the double arrow symbol indicate in a reversible reaction equation?
Forward reaction
Order the steps of forward and reverse reactions in a reversible reaction:
1️⃣ Reactants combine to form products in the forward reaction.
2️⃣ Products react to reform reactants in the reverse reaction.
Reversible reactions use the double arrow (⇌), while irreversible reactions use the single arrow (→).
What is an example of a reversible reaction?
Nitrogen and hydrogen forming ammonia
In a reversible reaction, equilibrium is achieved when reactant and product concentrations are constant
In a reversible reaction, reactants fully convert to products.
False
In the reversible reaction N2(g)+3H2(g)⇌2NH3(g), the product formed is ammonia
Match the characteristic of reversible reactions with its description:
Direction ↔️ Proceeds in both forward and backward directions
Equilibrium ↔️ Rates of forward and reverse reactions are equal
Representation ↔️ Represented by a double arrow (⇌)
At equilibrium in a reversible reaction, the rates of forward and reverse reactions are equal
Describe the components of the double arrow symbol used in reversible reactions.
1️⃣ Left arrow points right indicating the forward reaction
2️⃣ Right arrow points left indicating the reverse reaction
What are forward and reverse reactions in a reversible system?
Opposing processes
Match the characteristic with the correct type of reaction:
Direction ↔️ Reversible: Proceeds in both directions ||| Irreversible: Proceeds in one direction only
Equilibrium ↔️ Reversible: Achieves equilibrium ||| Irreversible: Does not reach equilibrium
Symbol ↔️ Reversible: ⇌ ||| Irreversible: →
Increasing temperature always shifts the equilibrium of a reversible reaction towards the endothermic direction.
True
Increasing reactant concentration always speeds up the forward reaction in a reversible system.
True
What happens to reactant and product concentrations at dynamic equilibrium?
They remain constant
At dynamic equilibrium, reactant and product concentrations remain stable over time.
True
The boiling and condensation of water is an example of a reversible reaction represented by the equation H2O(l)⇌H2O(g) where water changes between liquid and vapor phases.
Respiration is a reversible reaction that converts glucose and oxygen into carbon dioxide and water
Match the reversible reaction with its description:
Boiling and Condensation of Water ↔️ Phase change between liquid and vapor
Respiration and Photosynthesis ↔️ Conversion of glucose and oxygen
The reaction between acetic acid and water is an example of a reversible acid-base reaction that produces acetate and hydronium ions
Reversible reactions are represented by a double arrow in chemical equations.
What is established when the rates of forward and reverse reactions are equal in a reversible reaction?
Equilibrium
An example of a reversible reaction is the formation of ammonia from nitrogen and hydrogen.
The right arrow in the double arrow symbol indicates the reverse reaction.
Match the direction with its reactants, products, and arrow direction:
Forward ↔️ A, B ||| C, D ||| →
Reverse ↔️ C, D ||| A, B ||| ←
What is the key difference between reversible and irreversible reactions?
Direction of reaction
In irreversible reactions, reactants are fully converted to products.
True
Burning methane is an example of an irreversible reaction.
What symbol is used to represent a reversible reaction in a chemical equation?
⇌
What type of conditions are required for reversible reactions?
Specific conditions
What is an example of an irreversible reaction?
Burning methane
Reversible reactions proceed only in one direction.
False
What symbol is used to represent reversible reactions in chemical equations?
⇌
The double arrow symbol (⇌) shows both directions of a reversible reaction simultaneously.
True
In a reversible reaction, the reverse reaction converts products back into reactants.
True
The symbol for an irreversible reaction in a chemical equation is →