Question

plz write with aim conclusion observation ​

Answer 1

aim... to show the combination reaction between calcium oxide and water

observation ... after adding water and touching we feel some heat and some gases is evolved.

conclusion ... we finally concluded that lime is combined with h2o and make caoh whole twice

we also conclude that it is exothermic reaction

thanks

Answer 2

➡️Activity 1.4⬅️

Aim : Formation of slaked lime by the reaction of calcium oxide with water

Apparatus: Calcium oxide, beaker, and water

Procedure: Take a small amount of calcium oxide or quick lime in a beaker. Slowly add water to this. Touch the beaker

Observation: The beaker becomes hot (exothermic reaction). It reacts vigorously with water

Conclusion: Slaked lime is formed by the reaction of the combination of calcium oxide with water

CaO(s) + H2O(l) → Ca(OH)2(aq) + heat

(quick lime) (Slaked lime) (exothermic reaction)

This is a combination reaction, and also an exothermic reaction.

Hope it helps ☺️✌️❤️