Solid calcium oxide was taken in a container and water was added slowly to it
(i) State two observations made in the experiment.
(ii) Write the name of the chemical formula of the product.

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Solution

(i) Water will start boiling and hissing noise will be produced.

(ii) Calcium hydroxide (slaked lime) will be formed.

$C a O (s) + H_{2} O (a q) \to C a (O H)_{2} (s)$ + heat

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Solid calcium oxide was taken in a container and water was added slowly to it (i) State two observations made in the experiment. (ii) Write the name of the chemical formula of the product.

(i) Water will start boiling and hissing noise will be produced. (ii) Calcium hydroxide (slaked lime) will be formed. CaO(s)+H2O(aq)→Ca(OH)2(s) + heat

Solid calcium oxide was taken in a container and water was added slowly to it
(i) State two observations made in the experiment.
(ii) Write the name of the chemical formula of the product.

(i) Water will start boiling and hissing noise will be produced.

(ii) Calcium hydroxide (slaked lime) will be formed.

$C a O (s) + H_{2} O (a q) \to C a (O H)_{2} (s)$ + heat