a lady wanted to give a coating of whitewash to her home. she purchased quick lime CaO from tge market and dissolved it in water and immediately applied the same on the wall. in this process. she spoiled her hands and even suffered minor burns. a friend advised her not to be haste and keep it overnight before applying on the wall. she followed her advice and therewas now no problem. 1. what mistake was committed by the lady? 2. why did she suffer from burns? 3. how did the advice of her friend help her?

1. She try to do work in haste.
2. CaO react with H2O and give out heat in the process as it is a exothermic reaction. As the result the hand of lady burn
3. The heat produce by the reaction is lost to atmosohere overnight and the mixture became cool. Thus, she was able to apply the quicklime over the wall

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