Two million gallons; 80%
Transfer of heat, solvent, reactant
It is less - the others are all gases at room temp.
A molecule with unequal sharing of electrons and areas of different charge density.
The attraction of hydrogen in one molecule to the oxygen in another.
It is a liquid at room temperature, it has a high boiling point, it is a good solvent.
The solid is less dense than the liquid.
The partially negative pulls out positive ions from the crystal while the partially positive hydrogens pull out the negative ions.
Likes dissolve likes.
Small amounts of these chemicals may be present naturally. We can measure extremely small levels of chemicals. Should these become the permissible levels for the chemicals, i.e. just because we can detect it, is it bad?