Complete and balance the following equations:

$\mathrm{K}+{\mathrm{H}}_2\mathrm{O}\to$

Complete and balance the following equations:

Complete and balance the following equation:

$\mathrm{Na}+{\mathrm{CuSO}}_4\to$

Complete and balance the following equations:

${\mathrm{CuSO}}_4+\mathrm{Ag}\to$

Complete and balance the following equation:

$\mathrm{Mg}+\mathrm{HCl}\to$

Complete and balance the following equations:

$\mathrm{Cu}+\mathrm{HCl}\to$

Complete and balance the following equation:

$\mathrm{Zn}+{\mathrm{MgSO}}_4\to$

Complete and balance the following equation:

$\mathrm{KI}+{\mathrm{Br}}_2\to$

Complete and balance the following equation:

$\mathrm{Al}+\mathrm{NaCl}\to$