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Is liquifying nitrogen a chemical change?
No, liquifying nitrogen is a physical change. This process involves changing the state of nitrogen from a gas to a liquid without altering its chemical composition.
Why does liquid nitrogen exposed to air is a physical change?
When liquid nitrogen is exposed to air, it rapidly evaporates and turns into nitrogen gas. This process is a physical change because only the physical state of the substance is changed from liquid to gas, without altering its chemical composition.
Bacteria in root nodules change nitrogen gas in what form?
ammonia
Is liquid nitrogen that boils AT - 196 degrees Celsius chemical or physical?
The boiling of liquid nitrogen at -196 degrees Celsius is a physical change because it is a change in state from liquid to gas without changing the chemical composition of nitrogen.
What bacteria in the soil can change nitrogen compounds into?
Some bacteria in the soil, like Rhizobium and Azotobacter, are capable of converting nitrogen gas into a form that plants can use, such as ammonium or nitrates. This process is known as nitrogen fixation and is crucial for plant growth and soil fertility.
