Why water is essential for every type of life? what so speical about it?

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Answer 1

Water is the most common molecule in the universe that is a liquid and good solvent at a temperature in which organic chemistry is feasible.

Oils, alcohol, and some other molecules are liquid too at this temperature, but they are only metastable and are very rare in the universe. They break down into H2O, CO2, and CH4.

Some other common molecules and elements like H2, He, NH3, and CH4 are only liquid in extremely cold temperatures in which chemical reactions are extremely slow. Also, they are bad solvents.

Some other common elements like Fe are liquid only at high temperatures at which complex molecules don’t last for a long time. Also, they are bad solvents.