1. When calcium oxide (CaO), commonly known as quicklime, reacts with water (H₂O), it undergoes a vigorous exothermic reaction to produce calcium hydroxide {Ca(OH)₂}. The chemical equation for this reaction is: CaO(s) + H₂O(l) → Ca(OH)₂(aq) In this process, calcium oxide combines with water to form calRead more

    When calcium oxide (CaO), commonly known as quicklime, reacts with water (H₂O), it undergoes a vigorous exothermic reaction to produce calcium hydroxide {Ca(OH)₂}. The chemical equation for this reaction is:
    CaO(s) + H₂O(l) → Ca(OH)₂(aq)
    In this process, calcium oxide combines with water to form calcium hydroxide, which is a white, sparingly soluble solid. The reaction is highly exothermic, and it is often used in various applications, including the preparation of slaked lime for construction, water treatment, and as a reactant in chemical processes.

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  2. The reaction of calcium oxide (CaO) with water (H₂O) is highly exothermic, meaning it releases energy in the form of heat. This is due to the strong affinity of calcium oxide for water molecules. As CaO reacts with water, it forms calcium hydroxide {Ca(OH)₂}, and the process releases a significant aRead more

    The reaction of calcium oxide (CaO) with water (H₂O) is highly exothermic, meaning it releases energy in the form of heat. This is due to the strong affinity of calcium oxide for water molecules. As CaO reacts with water, it forms calcium hydroxide {Ca(OH)₂}, and the process releases a significant amount of heat. The energy change is negative, indicating an exothermic reaction. This heat release makes the reaction useful in various applications, including the preparation of slaked lime in construction and as a source of heat in self-heating food and beverage containers.

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  3. The chemical formula for marble is CaCO₃, indicating that it is primarily composed of calcium carbonate. In the reaction of slaked lime {Ca(OH)₂} with carbon dioxide (CO₂), calcium carbonate is formed. The chemical equation for this reaction is: Ca(OH)₂(aq) + CO₂(g) → CaCO₃(s) + H₂O(l) In this proceRead more

    The chemical formula for marble is CaCO₃, indicating that it is primarily composed of calcium carbonate. In the reaction of slaked lime {Ca(OH)₂} with carbon dioxide (CO₂), calcium carbonate is formed. The chemical equation for this reaction is:
    Ca(OH)₂(aq) + CO₂(g) → CaCO₃(s) + H₂O(l)
    In this process, carbon dioxide reacts with slaked lime to produce calcium carbonate (marble) and water. The reaction is a part of the natural carbonation process and is involved in the formation and transformation of geological formations like limestone and marble.
    In this process, carbon dioxide reacts with slaked lime to produce calcium carbonate (marble) and water. The reaction is a part of the natural carbonation process and is involved in the formation and transformation of geological formations like limestone and marble.

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  4. Whitewashing walls involves applying a mixture of slaked lime (Ca(OH)₂) and water to surfaces. When exposed to carbon dioxide (CO₂, present in the air), the slaked lime undergoes a reaction where carbon dioxide reacts with the calcium hydroxide to form calcium carbonate (CaCO₃). This newly formed caRead more

    Whitewashing walls involves applying a mixture of slaked lime (Ca(OH)₂) and water to surfaces. When exposed to carbon dioxide (CO₂, present in the air), the slaked lime undergoes a reaction where carbon dioxide reacts with the calcium hydroxide to form calcium carbonate (CaCO₃). This newly formed calcium carbonate contributes to the appearance of whitewashed walls by creating a thin layer of a white, solid compound. The reaction not only provides a protective coating but also adds a bright and visually appealing finish, making whitewashing a common technique for both decorative and functional purposes in architecture.

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  5. When slaked lime (Ca(OH)2) reacts with carbon dioxide (CO₂) in the air, a chemical reaction known as carbonation takes place. The reaction can be represented as: Ca(OH)₂(aq) + CO₂(g) → CaCO₃(s) + H₂O(l) In this process, carbon dioxide reacts with the calcium hydroxide in slaked lime, forming calciumRead more

    When slaked lime (Ca(OH)2) reacts with carbon dioxide (CO₂) in the air, a chemical reaction known as carbonation takes place. The reaction can be represented as:
    Ca(OH)₂(aq) + CO₂(g) → CaCO₃(s) + H₂O(l)
    In this process, carbon dioxide reacts with the calcium hydroxide in slaked lime, forming calcium carbonate (CaCO3) and water (H2O). The calcium carbonate is a solid that may contribute to the hardening and whitening of surfaces, making it a significant reaction in applications such as the formation of geological structures and the creation of whitewashed walls.

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