Chapter 21, Problem 18E

Write chemical equations for the reactions you would expect to occur when

1. Mg ${\left({\text{HCO}}_{\text{2}}\right)}_{\text{2}}$(s) is heated to a high temperature
2. ${\text{BBCI}}_{\text{2}}$(l) is electrolyzed
3. Sr(s) is added to cold dilute HBr(aq)
4. $\text{Ca}{\left(\text{OH}\right)}_{\text{2}}\left(\text{aq}\right)$ is added to ${\text{H}}_{\text{2}}{\text{SO}}_{\text{4}}\left(\text{aq}\right)$
5. ${\text{CaSO}}_{\text{4}}\cdot {\text{2H}}_{\text{2}}\text{O}\left(\text{s}\right)$is heated