When water ionizes it produces equal amounts of hydrogen and hydroxide ions which can reassociate with each other. Water is thus.

Ibelieve its a because an empirical formula usually has a ch in it your options are a or b

Ithink this is what you meant. the temperature at which a liquid begins to boil is called the boiling point. the boiling point of water is 212°f or 100°c.  and at that point will start to turn into steam (gas)

What are the options? i can you if you give them.

Go ask spider man