Next, the hydrogen combines with remaining oxygen:

Thus oxygen and hydrogen do not combine at room temperatures, but do so explosively if the temperature is raised.

The hydrogen and methane combine with oxygen in the presence of platinum, as a catalyst, and combust.

The carbon and hydrogen combine with oxygen, and the nitrogen is liberated.

When the helium is vaporized, the atomic hydrogen would be released and combine back to molecular hydrogen.

When hydrogen is burned in the presence of oxygen, the hydrogen and oxygen combine to form H20, or water.

Atomic hydrogen either combines to form H at the metal surface or diffuses into the metal matrix.

In susceptible alloys, the hydrogen combines with carbon within the alloy and forms methane.

At 30 million degrees, one hydrogen and one carbon combine into nitrogen.

The hydrogen and nitrogen inevitably combined.