Double Displacement Help?

Question

a)Lime has the chemical formula CaO. It reacts with water to form a basic solution. Complete the following double displacment reaction. Balance the equation if necessary.

CaO (s) + H2O (l) -->

b) The resulting base then reacts with acid from the spill in a neutralization reaction. Write the balacned chemical reaction for this neutralization.

Answer 1

CaO + H2O ----> Ca(OH)2

This will react with any acid eg HCl:

2HCl + Ca(OH)2 -----> CaCl2 + 2H2O

or H+ + OH- ----> H2O