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Liquid nitrogen is fun stuff to play with, as long as you’re careful and avoid freezing your own fingers off and shattering them on the workbench. As the liquid turns to gaseous nitrogen at ...

Nitrogen makes up about 78% of the Earth's atmosphere. Liquid nitrogen is very cold, so it is often used to freeze food. The boiling point of nitrogen is −196 °C, so liquid nitrogen is very ...

This is known as denitrification and is the common source of nitrogen loss in fine-textured clay soils. Ammonia is a gas at atmospheric pressure but can be compressed into a liquid, as is the case ...