PLeASe HeLP??

Question

PLeASe HeLP ANSWeR THeSe CHeM QUeSTIONS??

1.CaO (s) + H2O(l) = Ca2+ (aq) + 2OH –(aq)

(i)If the pH of this solution were tested, state whether it would be below or above pH 7, or equal to pH 7.
(ii)Give a reason for your answer to (i) above.

2. Write a balanced equation to show what happens when solid calcium carbonate is heated.

Thanks Muchly!!!

Answer 1

This is a reaction of a strong base and weak acid, so the pH will be that of a base.

CaCO3 decomposes to produce CO2 and CaO.

You can write the equation and it is easy to balance