In a water molecule. the hydrogens have what charge
positive or negative

The hydrogens inside a water molecule have a positive charge. Hope this helps :)

I would have a positive charge.

Explanation:

answer; ///(b) it is composed of four protein chains and four heme groups;

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.