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It doesn't. Get your facts right.

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15y ago

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Do you turn burners to a yellow flame when not in use?

No; I turn them off.


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 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.


How do you turn purple into yellow?

Mix it with black


How do you prevent the underside of the test tube from turning black?

To prevent the underside of a test tube from turning black, ensure that the flame from the Bunsen burner is not directly underneath the test tube. Properly adjust the Bunsen burner flame to a blue, non-sooty flame and hold the test tube at an angle instead of directly above the flame. Additionally, using a ceramic wire gauze or a tripod can help diffuse the heat evenly.


What happens if you turn off a Bunsen burner with a yellow flame?

it can go boom boom! fire starts


What color does Iron chloride turn in flame test?

Iron chloride does not produce a distinctive color in a flame test. It typically appears as a pale yellow-green flame due to the presence of the chloride ion rather than the iron ion.


What is turned to used to change the type of flame a Bunsen burner produces?

You would turn the collar on a Bunsen Burner so that the holes are exposing the flame to more oxygen to produce a blue flame. Close the holes by turning the collar to turn it back to the yellow (dirty) flame.


Why do you have to turn a Bunsen burner to a yellow flame if you need to leave it?

Turning a Bunsen burner to a yellow flame, known as a safety flame, is important for safety when you need to leave the lab. This flame is less intense and more visible, reducing the risk of accidents or unnoticed fire hazards. Additionally, a yellow flame indicates that the burner is not in use, helping to prevent potential burns or injuries to others who may enter the area.


What color do bananas turn after they turn yellow?

they turn black and they get all mushey and they taste gross


Do you turn the hole fully to turn the Bunsen Burner on Safety Flame?

Yes, to achieve a safety flame with a Bunsen burner, you should turn the air hole fully closed. This creates a yellow, luminous flame known as the safety flame, which is cooler and more visible. When you’re ready to use the burner for experiments, you can then gradually open the air hole to adjust to a blue, hotter flame for optimal performance.


When you burn sodium oxide what colour does it turn?

When sodium oxide is burned, it typically produces a yellow flame.