Question

"To pour water on calcium oxide." which is another way to classify this reaction explain? answer the following question ​

Answer 1

Answer:

pouring water in calcium oxide is an exothermic reaction which means water is when mixed in calcium oxide liberates energy in form of heat and product formed is calcium hydroxide

Explanation:

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Answer 2

Answer:

Before classifying this reaction, let us first understand the reaction. When water is poured on calcium oxide - CaO (also known as quick lime), they react to form calcium hydroxide - Ca(OH)2 (also known as slaked lime). This reaction also results in the liberation of an enormous amount of heat.

CaO+H2O→Ca(OH)2

- So, we can see that the above reaction involves the two substances – calcium oxide and water, combining to form one product – calcium hydroxide.

- Such a reaction in which 2 or more reactants combine to form a single product is called a combination reaction.

- Hence, we can conclude that “pouring water on calcium oxide” is a combination reaction.

- Next, we have already said that the reaction involves the liberation of heat.

- Such a reaction in which, energy is released in the form of heat is called an exothermic reaction.

- Hence, we can conclude that “pouring water on calcium oxide” is an exothermic reaction.

- Combining both conclusions, we can say that “pouring water on calcium oxide” is an exothermic combination reaction.

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