Difference between Hydration and Hydrolysis?

[horizon]

What is the difference between hydration and hydrolysis?

I been told that hydrolysis is the one where water is a reactant, right or wrong?

[thushan]

both involve water as a reactant - hydration is adding water onto a molecule (e.g. CH2=CH2 to CH3CH2OH), hydrolysis is breaking a molecule into multiple pieces by reacting with water (e.g. ethyl ethanoate --> ethanol and ethanoic acid).

From the name - hydro = water, lysis = to break (think cell lysis if you do biology)