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A compound ‘A’ is used in the manufacture of cement. When dissolved in water, it evolves a large amount of heat and forms compound ‘B’.
(i) Identify A and B.
(ii) Write chemical equation for the reaction of A with water.
(iii) List two types of reaction in which this reaction may be classified.
(i) A is Calcium Oxide (CaO) and B is calcium hydroxide Ca(OH)2.
(ii) The reaction is shown below:
$CaO + H_2O → Ca(OH)_2 + Heat$
(iii) The reaction can be known as a hydrolysis reaction (due to reaction with water) or exothermic reaction ( due to release of heat).
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