A bit of background: The white light from the sun is a mixture of all colours of the spectrum. Each colour of light ahas a wavelengths. The visible part of the spectrum ranges from red light (wavelength =720 nm), to violet (wavelength =380 nm), with orange, yellow, green, blue and indigo between. The human eye reacts most strongly to strongly to red, green and blue wavelengths. This gives us colour vision. The explanation: Light passing through a clear fluid with suspended particles is scattered. Some wavelengths like blue are scattered more strongly. The first person to notice this and experiment with it was John Tyndall in 1859. So he got to mane the effect the Tyndall Effect. He made three important observations: * From the side, (the way we see most of the sunlight in the sky) the beam can be seen by the blue light it scatters * The light seen directly at the end (looking towards the source) is red. This is the way we see the sunlight at sunset
* The scattered light is polarized. This is why polarized sun glasses make some parts of the sky seem darker.
Some early researchers (Tyndall and Rayleigh) thought that the blue colour of the sky must be due to small particles of dust and droplets of water vapour in the sky. Later scientist discounted this and proposed that oxygen and nitrogen molecules are the cause of the scattering.
In 1911 Einstein did the math to prove that the molecules could cause the scattering. Technically the molecules scatter light because the electromagnetic field of the light waves induces electric dipole moments in the O2 and N2 molecules,
resonators that scatter blue light Answer: A bit of background: The white light from the sun is a mixture of all colours of the spectrum. Each colour of light ahas a wavelengths. The visible part of the spectrum ranges from red light (wavelength =720 nm), to violet (wavelength =380 nm), with orange, yellow, green, blue and indigo between. The human eye reacts most strongly to strongly to red, green and blue wavelengths. This gives us colour vision. The explanation: Light passing through a clear fluid with suspended particles is scattered. Some wavelengths like blue are scattered more strongly. The first person to notice this and experiment with it was John Tyndall in 1859. So he got to mane the effect the Tyndall Effect. He made three important observations: * From the side, (the way we see most of the sunlight in the sky) the beam can be seen by the blue light it scatters * The light seen directly at the end (looking towards the source) is red. This is the way we see the sunlight at sunset* The scattered light is polarized. This is why polarized sun glasses make some parts of the sky seem darker.Some early researchers (Tyndall and Rayleigh) thought that the blue colour of the sky must be due to small particles of dust and droplets of water vapour in the sky. Later scientist discounted this and proposed that oxygen and nitrogen molecules are the cause of the scattering.In 1911 Einstein did the math to prove that the molecules could cause the scattering. Technically the molecules scatter light because the electromagnetic field of the light waves induces electric dipole moments in the O2 and N2 molecules.
predominantly large particles"As a particle gets bigger, it is no longer selective in the wavelength it scatters. You can see this change if you carefully watch someone smoke. The smoke off the end of the cigarette is made up of particles that are very small compared to the wavelength of visible light, and thus appear blue, particularly if viewed against a dark background. When you inhale the smoke into your lungs, exposing yourself to great health hazards, some of the smoke stays suspended in your lungs until you exhale. Your lungs are warm and moist, and the moisture begins to condense on the smoke particles forming a type of polluted smog in your lungs (yuck!). When you exhale, the particles have become larger due to the condensation occurring in your lungs, large enough so that the smoke particles scatter light independent of wavelength, and the exhaled smoke looks white."
Silicon tetrachloride has a low melting point because it is a nonpolar molecular compound with weak van der Waals forces between its molecules. These weak forces make it easier for the molecules to separate and move around, requiring less energy to melt the compound compared to substances with stronger intermolecular forces.
Water molecules have a lopsided shape due to the bent structure caused by the unequal sharing of electrons between oxygen and hydrogen atoms. This polarity leads to the formation of hydrogen bonds, which make water act like a chemical magnet, allowing it to easily attract and interact with other polar molecules.
Yes, ethanol can act as a reducing agent in certain chemical reactions. It can donate electrons to other molecules, causing a reduction reaction to occur.
molecules ct different because they are formed withdifferent atoms
Because they act like a normal factoy would.;}:]
Molecules with hydrogen bonding have the strongest intermolecular forces. This includes molecules containing hydrogen bonded to highly electronegative atoms like oxygen, nitrogen, or fluorine. These intermolecular forces are stronger than other types such as dipole-dipole or van der Waals forces.
Water molecules act like little magnets because they are polar molecules, with a slightly positive charge on the hydrogen atoms and a slightly negative charge on the oxygen atom. This polarity allows water molecules to attract each other, forming hydrogen bonds which gives water its unique properties like surface tension and cohesion.
Ozone molecules act like a blanket. They are the ones who protect us. The protection is against the UV rays.
they work as filters.
enzymes are protein molecules that act as biological catalysts
Enzymes act as catalysts in living things.
They occur on the surface of specialised cells and are called "cilia".
A coloured substance can only act as a dye if its molecules can stick to the molecules of the material. This is called mordancy, and depends on the chemical groups present on the molecules of the coloured substance and on the molecules of the material. Think of it as a lock and a key, the key has to be the right shape to fit into the lock.
Complex molecules are broken down into simple molecules by the action of specialised proteins called enzymes. The three digestive enzymes are:amylases, which act on the carbohydratesproteases, which act on the proteinslipases, which act on the lipids
ocean or sunset, because her head will act as the sun while the light blue is the water on top while the dark blue is the dark sea.