Sometimes mine do! I use some chemicals that are dangerous if they get anywhere near water so I have to handle them in a special box full of a gas called argon. Argon is a gas that is really stable so it will never react with my chemicals! There’s a picture of me using it on my profile. The box looks has special gloves built into it so I can do my work inside (it’s called a glove box!) I feel a bit like Homer Simpson when I use it!
I also use carbon dioxide sometimes to try and make y plastics. I have to use very high pressures which can be a little bit scary but so far nothing has gone wrong! (Fingers crossed…) I have to be very careful.
I also use lots of nitrogen. Nitrogen in a gas that makes up most of the Earth’s atmosphere. When I use it though it’s a bit different- it’s even cooled right down and turned into a liquid! Liquid nitrogen is one of the coldest things on Earth – it’s -196 degrees C! ❄️❄️❄️
Depending on the experiment I am doing I have used argon, helium, hydrogen, acetylene and nitrous oxide. I use these gases when I am looking at soil pollution and I want to know how much metal pollution is in the soil.
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