yes they are
though paraffin is pretty volatile, it has no detectable odor.
The gasses released from the volcano were thick and suffocating.
A red liquid inside a thermometer, often colored with mercury or alcohol, can emit a metallic smell when exposed to air as these substances are volatile. The smell is more noticeable when the thermometer is broken or if the liquid is spilled, releasing the odor into the air.
Caesium itself is a metal and does not have a distinct odor. When caesium reacts with air or water, it can produce caesium hydroxide which has a soapy or ammonia-like odor.
Phosphorus itself does not have a distinct odor. However, when it reacts with air, it can produce phosphorus oxides which may have a slightly garlic-like odor.
No. Like the other noble gasses, helium ix completely odorless.
air
air is formed of gasses and matters
Mixture of many gasses Known Air
The liquid odor gets into the air by diffusion. Diffusion is the quality by that means the gasses tend to spread across the given volume. What is the exact reason for this phenomena is not known to me. I want to know the reason behind this phenomena. Why does gas move to fill the given volume is very easy to explain. Gas moves to make the pressure equal across the volume.
though paraffin is pretty volatile, it has no detectable odor.
By pumping colored smoke into it.
The properties of air is that it is odorless and colorless. There are many gasses and liquids that have these properites, such as Oxygen and Nitrogen and Carbon Dioxide. Air is a mixture of these gasses.
The gasses released from the volcano were thick and suffocating.
A red liquid inside a thermometer, often colored with mercury or alcohol, can emit a metallic smell when exposed to air as these substances are volatile. The smell is more noticeable when the thermometer is broken or if the liquid is spilled, releasing the odor into the air.
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We breathe in air, which is a mix of many different types of gasses. Our body absorbs the oxygen from the air, and expels any gasses that our body will not use.