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Why is visible light given off when a salt such as sodium chloride is exposed to a flame?
When a salt like sodium chloride is exposed to a flame, the high temperature causes the electrons of the metal ions (such as sodium) to become excited. As the electrons return to their ground state, they release energy in the form of light. This visible light is the characteristic color emitted by the specific metal ions present in the salt.
Color of silver iodide?
Silver iodide is typically a yellow or light yellow color.
Why does sodium burn yellow?
When sodium burns, it emits a yellow light due to the specific wavelengths of light that are produced during the process. The excitation of sodium atoms during combustion causes them to release energy in the form of visible light, which happens to be in the yellow part of the spectrum. This emission of light is characteristic of the sodium element.
Why do you store sodium chloride in colored bottles?
Sodium chloride is stored in colored bottles to protect it from exposure to light, which can cause degradation or changes in the composition of the compound. Colored bottles help to block out light and maintain the stability of the sodium chloride.
What happens when you mix bromine and sodium?
When you mix bromine and sodium, a redox reaction occurs where sodium donates an electron to bromine. This forms sodium bromide, a white crystalline solid, along with releasing a significant amount of heat and light.
What is a compound used in photography which darkens when exposed to light?
Silver Halide Silver iodide
How is iodine used in photography?
Iodine is used in photography as a component of the silver iodide emulsion that coats light-sensitive film or photographic paper. When exposed to light, the silver iodide undergoes a chemical reaction that forms an image, capturing the light and creating a photograph.
Why is sodium called a photosensitive metal?
Sodium is not typically referred to as a photosensitive metal. However, it can exhibit photoelectric effects when exposed to light due to its low work function. This property is utilized in various applications, such as in photocells and photoelectric sensors.
What happens when silver halides are exposed to light or radiation?
They turn black
What happens to te earth worm when it is exposed to light?
It explodes. Only joking :) Nothing visible happens to it that we know of
Why is visible light given off when a salt such as sodium chloride is exposed to a flame?
When a salt like sodium chloride is exposed to a flame, the high temperature causes the electrons of the metal ions (such as sodium) to become excited. As the electrons return to their ground state, they release energy in the form of light. This visible light is the characteristic color emitted by the specific metal ions present in the salt.
Why is sodium thiosulphate stored in a brown bottle?
Sodium thiosulfate is photosensitive, meaning it degrades when exposed to light. Storing it in a brown bottle helps to block out light and prevent this degradation, maintaining the stability and effectiveness of the compound.
What happens to auxin's when they are exposed to light?
When auxins are exposed to light, they tend to move away from it, which is known as phototropism. This movement helps plants to grow towards light sources by elongating cells on the shaded side of the plant.
What happens if film is exposed to light?
When film is exposed to light, the chemicals on the film react to the light and create an image. This process is called photochemical reaction. The image is then developed and fixed onto the film, creating a photograph.
What happens when film is exposed to light?
When film is exposed to light, the light causes a chemical reaction in the film's emulsion, creating an image on the film. This process is known as photochemical reaction, where light interacts with the light-sensitive chemicals in the film to capture the image.
What happens when a film is accidentally exposed to light?
When a film is accidentally exposed to light, it can result in overexposure, causing the images on the film to be ruined or washed out. This can lead to loss of detail and clarity in the photos.
What happens when selenium is exposed to light?
Selenium is photoconductive, meaning its electrical conductivity increases when exposed to light. This property is used in applications such as photocopiers and solar cells. However, prolonged exposure to bright light can degrade selenium's performance.
