Question

Describe an activity to observe what happen when quick lime is added to water taken in a beaker state two important observation & name the type of reaction

Answer 1

when quick lime is added to water than it forms calcium hydro oxide.
it is combination reaction

Answer 2

Procedure:

i. Take small quantity of quick lime (CaO) in a beaker.

ii. Slowly add water to the quick lime (CaO) taken in the beaker.

iii. Touch the beaker with fingers and make a note of the change in temperature.

Observations:

i. Quick lime reacts vigorously with water producing hissing sound.

ii. Beaker becomes hot.  

Inferences:  

Quick lime (calcium oxide) reacts with water vigorously to form calcium hydroxide and releases large amount of heat.  

It is an example of a combination reaction as well as an exothermic reaction.