Question

if not for hydrogen bonds, water would vaporize at -68° c, meaning liquid water (and thus life) could not exist on earth. t/f
false
true

Explanation:

Hydrogen bonds in water increase its boiling point. Without hydrogen bonds, water's vaporization temperature would be much lower (around -68°C as stated). Earth's surface temperature is suitable for liquid water, but without hydrogen bonds, water would vaporize easily, making liquid water (and life dependent on it) non - existent. So the statement is true.

Answer:

True