Chapter 21, Problem 2E

Use information from the chapter to write chemical equations to represent each of the following:

1. reaction of rubidium metal with water
2. thermal decomposition of aqueous ${\text{KHCO}}_{\text{3}}$
3. combustion of lithium metal in oxygen gas
4. action of concentrated aqueous ${\text{H}}_{\text{2}}{\text{SO}}_{\text{4}}$ on KCI(s)
5. reaction of lithium hydride with water