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What is the composition of the deposit on the porcelain dish when it was held over a luminous flame?
The deposit on the porcelain dish from holding it over a luminous flame is likely a mixture of soot, carbon, and other combustion byproducts. This can result from incomplete combustion of organic materials present in the flame.
Where should a beaker be placed with respect to the flame for the most efficient heating on Bunsen burner?
The most efficient, and safe, place for a beaker to be heated is above the flame. Have the beaker held up by the proper metal stand and have it held so that the flame is grazing the bottom of the beaker. Be careful though, the flame should only graze the bottom of the beaker so that the chemical doesn't heat up too quickly.
What would happen if a drop of a clear colorless solution was held in a flame?
NOTHING 2. If the fluid contained some element, e.g. sodium or calcium, then the flame would show the colour appropriate to that element. Flame photometry relies on this principle.
Why does the glass seal faster when it is held horizontally over the flame?
When the glass is held horizontally over the flame, the heat is distributed more evenly across the surface area of the glass, causing it to heat up faster and enabling the seal to form quicker. Additionally, the horizontal position allows for better control and manipulation of the glass to ensure a tight seal.
What do flame orbs do in pixelmon?
In Pixelmon, flame orbs are items that can be used to enhance the power of Fire-type moves. When held by a Pokémon, they boost the damage of Fire-type attacks by 20%. Additionally, they can be used in crafting or can be given to certain Pokémon to trigger specific evolutions or transformations.
Which city held the first to light the olympic flame?
America
What happens to white porcelain when held over the safety flame?
When held over a safety flame, white porcelain may become dirty or sooty from the flame. The heat may also cause the porcelain to change color slightly or develop a smoky residue on its surface.
What do you observe when the end of the copper wire is held in the hottest part of the burner flame for about seconds?
When the end of a copper wire is held in the hottest part of a burner flame for a few seconds, the copper wire will likely change color to a bright green or bluish flame as it undergoes oxidation. This is due to the formation of copper oxide on the surface of the wire from the reaction with oxygen in the flame.
What is the color of iron in aflame?
If you're referring to what chemists call a "flame test", then the characteristic color due to iron ions is yellow (which may not be terribly spectacular, depending on how hot the flame in question is). If you're referring to the color of an iron bar held in a flame, it depends on how hot the flame is; if it's held there long enough, it should be approximately the same color the flame itself is (assuming it doesn't melt first).
What happens when a beaker with cold water is held in a yellow burner flame?
If a beaker with cold water is held in a yellow burner flame, the water will begin to heat up as it absorbs the thermal energy from the flame. Eventually, the water will reach its boiling point and start to evaporate. It's important to note that the yellow flame indicates incomplete combustion, which can produce soot and carbon monoxide.
What color does magnesium emit when held into a flame?
Magnesium burns a bright white color.
What color does gold leaf appear when held up to the light?
When held up to the light, gold leaf appears as a shiny, metallic gold color.
The metal atoms in stainless steel are held by what?
metallic bonds
Why does the blue flame on a Bunsen burner make metal things red when they are held in the flame for a long time?
The blue flame of a Bunsen burner is hotter than the yellow flame. When a metal object is held in the blue flame for a long time, it absorbs heat and emits light, resulting in the metal glowing red due to incandescence. This happens as the metal reaches a temperature at which it begins to emit visible light.
Why if your hand is held high above a burning candle does it feel heat?
Even though heat rises due to convection, the energy from the flame travels in all directions and can reach your hand even when it is held above the candle. The heat radiates outward from the flame, which is why you can feel the warmth even if your hand is not directly above the flame.
How is the Olympic flame carried on a plane?
The olympic flame is not extinguished from the time it is lit in Olympia to the end of the games in the host city. When it is carried on a plane it is held in several sealed containers
How is the Empire State Building held together?
Steel beams and metal
