The hydrogen runs through a fuel cell that generates electricity to power the wheels and produces nothing but water vapor. So does this ... electrons in a hydrogen atom apart.

"Measuring the D/H ratio in water vapor on exoplanets is certainly not ... natural deuterium in the ocean accounts for about one atom in every 6,240 atoms of hydrogen, or 35 grams of deuterium ...

releasing nothing but water vapor and heat into the atmosphere. The electrolysis process of separating water into two atoms of hydrogen and one atom of oxygen, though, is power intensive—it ...

As it cools, water vapor becomes liquid again (condensation ... This is a model of a water molecule. The red represents one atom of the element oxygen, and the white represents two atoms of the ...

In this reaction, the catalyst is potassium permanganate. The reaction produces a lot of heat so the substance shooting out of the bottle is water vapor that is condensing in the cooler air. Oxygen ...

New Delhi's air pollution is more severe than previously estimated with particles absorbing atmospheric water vapor leading to particulate matter levels across the city being underestimated by up to ...