What is the reason water is a liquid at normal earth conditions when it should be a gas

Actually, from the phase diagram, water should exist as liquid at normal conditions. At a pressure of 1.0 atm and 25 degrees Celsius, water exist as a liquid not a gas. Only when the temperature reaches 100 and more, it exist as gas.

Decomposition is the cycle at which bacteria breaks down any organic material into the soil

Answer is: the equilibrium  shifts toward the reactants, to the left side of chemical reaction.it is because lead(ii) nitrate dissociates in water: pb(no₃)₂ → pb²⁺(aq) + 2no₃⁻(aq).according to lechatelier's principle, the position of equilibrium moves to counteract thechange (more lead cations, common ion), the position of equilibrium will move so that the concentration ofproducts decrease and concentration of reactants of chemical reaction increase.read more on -