18.6 Exercise 2

Complete and balance the following chemical equations:

(a) hardening of plaster containing slaked lime
$\text{Ca} \left(\text{OH}\right)_{2} + \text{CO}_{2} \rightarrow$

(b) removal of sulfur dioxide from the flue gas of power plants
$\text{CaO} + \text{SO}_{2} \rightarrow$

(c) the reaction of baking powder that produces carbon dioxide gas and causes bread to rise
$\text{NaHCO}_{3} + \text{NaH}_{2} \text{PO}_{4} \rightarrow$