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The Properties of Gases Nitrogen gas
Physical Properties
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| Colour |
Colourless |
| Odour |
Odourless |
| Density compared to air (heavier or lighter) |
Same as air |
Chemical Properties
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| Solubility in water |
Slightly soluble |
| Burning |
Does not support combustion |
| Moist pH paper |
No reaction |
| Red rose petals |
No reaction |
| Specific test |
None |
Footnotes:
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Makes up around 79% of the gases in the air.
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Used to make ammonia gas, which in turn is used to make explosives and fertilizers.
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Used in light bulbs and thermometers because it is not reactive.
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Also used as the atmosphere in rooms where explosives are stored.
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