8. mathrm(Ca)(mathrm(OH))_(2)+?=mathrm(CaCl)_(2)+ ?

To balance the chemical equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation.Given equation: \( \mathrm{Ca}(\mathrm{OH})_{2}+?=\mathrm{CaCl}_{2}+ \)?Step 1: Identify the number of atoms of each element in the reactants and products.- In \( \mathrm{Ca}(\mathrm{OH})_{2} \), there is 1 calcium atom, 2 oxygen atoms, and 2 hydrogen atoms.- In , there is 1 calcium atom and 2 chlorine atoms.Step 2: Balance the calcium atoms.- There is 1 calcium atom on both sides, so calcium is already balanced.Step 3: Balance the chlorine atoms.- There are 2 chlorine atoms in , so we need 2 chlorine atoms on the reactant side.- To get 2 chlorine atoms, we need 2 molecules of .Step 4: Balance the oxygen and hydrogen atoms.- There are 2 oxygen atoms and 2 hydrogen atoms in \( \mathrm{Ca}(\mathrm{OH})_{2} \).- To balance the oxygen and hydrogen atoms, we need 2 molecules of on the product side.The balanced chemical equation is:\( \mathrm{Ca}(\mathrm{OH})_{2} + 2\mathrm{Cl}_{2} \rightarrow \mathrm{CaCl}_{2} + 2\mathrm{H}_{2}\mathrm{O} \)Therefore, the missing reactant is and the missing product is .