Caesium reacts violently with water to produce heat, hydrogen gas, and a caesium hydroxide solution. The heat is so great that the hydrogen produced is usually above its ignition point in air and therefore may explode violently.
The word equation is that iron or Fe reacts with steam H2O to produce iron oxide and hydrogen gas. Many metals that react with steam will give the products of the specific metal oxide and hydrogen gas.
The word equation for the reaction of rubidium with water is rubidium + water --> rubidium hydroxide + hydrogen. Rubidium is a metal that reacts very quickly and fiercely, even explosively with water.
A word equation is where you with the words of the reactants and products instead of the symbols. H2 + 1/2 O2 --> H2O Symbol equation Hydrogen + Oxygen --> Water Word equation :-)