0
Why should you leave the Bunsen burner with the air hole closed?
Wiki User
∙ 12y ago
Because if the air hole was wide open, the flame will be blue, which is going to be really hot so you have to leave it at a safety yellow flame which is when the air hole is closed when lit. It could be dangerous to leave a Bunsen burner on a blue flame.
this is confusing, explain more clearly, geez is dat too much to ask?
Chaz Stroman
Add your answer:
Earn +20 pts
Why do you need to know witch flame is nosier on a Bunsen burner?
so when you leave the room the bunsen is in the nosier flame (roaring flame)tells the other people that the bunsen is on and they wouldn't burn themselfs
What is the function of the Gas inlet of the Bunsen burner?
The inlet valve at the bottom is used to draw oxygen in from the environment so that the flame burns more efficiant and hotter. If closed the flame will be an orange colour and will leave a sooty deposit due to the gas not oxidizeing compleately.
How does a yellow flame on a Bunsen burner make things black but the roaring flame doesn't?
The flame of a Bunsen burner that is yellow in color will leave a black carbon residue due to the incorrect mixture of oxygen into the flame. Because there is not enough oxygen for complete combustion, the carbon reside is left behind. When the Bunsen flame has a sufficient amount of oxygen mixed in, hence the 'roaring flame', it has a blue color and does not leave a carbon residue due to complete combustion of the acetylene gas.
Why is it dangerous to leave an ignited Bunsen burner unattended?
Take it from a volunteer fireman, Never and I mean never, leave any type of fire unattended. Fire can spread faster than you would believe.
How do you separate charcoal powder from mixture of copper oxide?
i did this in a lab using methods of solution, filtration and evaporation : add dilute sulphuric acid to the solid/solid mixture ..heat on a Bunsen burner till bubbles appear then filter the solution, collect the filtrate in an evaporating dish and heat on a Bunsen burner until most the water evaporates or half the filtrate has evaporated .....remove the dish from the burner and leave it on a flat undisturbed surface for 48hrs to allow crystallization.
When you are not using a Bunsen burner but wish to leave the flame on you should always leave the air hole closed why?
It is less hot
Why should you leave a Bunsen burner with the air hole closed?
Because if the air hole was wide open, the flame will be blue, which is going to be really hot so you have to leave it at a safety yellow flame which is when the air hole is closed when lit. It could be dangerous to leave a Bunsen burner on a blue flame. this is confusing, explain more clearly, geez is dat too much to ask?
Why should you leave a lighted Bunsen with the air hole closed?
Because if the air hole was wide open, the flame will be blue, which is going to be really hot so you have to leave it at a safety yellow flame which is when the air hole is closed when lit. It could be dangerous to leave a Bunsen burner on a blue flame. this is confusing, explain more clearly, geez is dat too much to ask?
What can you use a safety flame for?
When you have to leave your Bunsen burner but need to keep it alight.
Why should the yellow Bunsen burner flame not be used for heating?
because it isnt hot enough and will leave soot on the bottom of the thing you are heating
Why do you need to know witch flame is nosier on a Bunsen burner?
so when you leave the room the bunsen is in the nosier flame (roaring flame)tells the other people that the bunsen is on and they wouldn't burn themselfs
What is the function of the Gas inlet of the Bunsen burner?
The inlet valve at the bottom is used to draw oxygen in from the environment so that the flame burns more efficiant and hotter. If closed the flame will be an orange colour and will leave a sooty deposit due to the gas not oxidizeing compleately.
Why should you turn a Bunsen burner to a yellow flame if you need to leave it?
The yellow flame is more visible - making it easier for others to see. It's also a colder flame than the blue conical one.
What do you put on top of a Bunsen burner that evaporates water to leave salt?
You put a tripod then a gauze on top.Then on top of the guaze you put a beaker of salt water.That will then evaporate to leave salt.
How do you be safe using a Bunsen burner?
how to be safe using a Bunsen Burner:1. never leave the flame unattended... especially when on the blue flame.2. always wear safety glasses.3. don't heat up anything metal because they will get very hot.4. don't let young children near the Bunsen burner when it's on.5. always have someone watch it.6. turn the gas off immediately when the flame goes out.
How does a yellow flame on a Bunsen burner make things black but the roaring flame doesn't?
The flame of a Bunsen burner that is yellow in color will leave a black carbon residue due to the incorrect mixture of oxygen into the flame. Because there is not enough oxygen for complete combustion, the carbon reside is left behind. When the Bunsen flame has a sufficient amount of oxygen mixed in, hence the 'roaring flame', it has a blue color and does not leave a carbon residue due to complete combustion of the acetylene gas.
Why is it dangerous to leave an ignited Bunsen burner unattended?
Take it from a volunteer fireman, Never and I mean never, leave any type of fire unattended. Fire can spread faster than you would believe.
