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A piece of marble chips was strongly heated in air for about 30 minutes. Some drops of water were added drop by drop to the product when it was still warm.
Using equation, explain:
i).What happens when the piece of marble chips is heated?
ii) The reaction that takes place when water

Answer Text:
a).It decomposes to give Calcium oxide/Lime and Carbon (IV) oxide
#CaCO_(3(s)) -> CaO_(s) + CO_(2(g))#
b).Alot of heat is evolved which makes the piece of lime swell hence the name quick lime and Calcium hydroxide (slaked lime) is formed.
#CaO_(s) + H_2 O_(l) -> Ca(OH)_(2(s))#