The addition of water to calcium oxide leads to?

Assessment: JAMB UTME - Chemistry - 1998 Subject: Chemistry

Question 1 Report

The addition of water to calcium oxide leads to?
Answer Details
The addition of water to calcium oxide results in a chemical change. This chemical reaction is also known as slaking of lime. When water is added to calcium oxide (also known as quicklime), a highly exothermic reaction takes place, releasing a large amount of heat energy. This reaction forms calcium hydroxide (also known as slaked lime), which is a white powder that is sparingly soluble in water. The chemical equation for this reaction is: CaO + H2O → Ca(OH)2 + heat energy So, the correct answer is "a chemical change."
Read lesson note on Kinetic Theory Of Matter And Gas Laws (JAMB)
Read lesson note on Chemical Combination (JAMB)
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