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Usually when a molecule changes color, it is reacting with another molecule in the solution. Whether the reaction adds a substituent or even a hydrogen, the characteristics of the molecule change. The wavelength of light that the molecule originally absorbed could change as well, which would affect the wavelength of light that is emitted, hence, the molecule changing color.
Wiki User
∙ 15y ago
Wiki User
∙ 12y agoUsually, when pennies change color, it is because the copper in them tarnishes. This is a reaction between the copper on the surface of the penny and oxygen in the air. There are two common reactions involved:
4 Cu + O2 → 2 Cu2O
and the other (simplified)
2 Cu + O2 → 2 CuO
The former of these happens more readily, and produces a reddish color. The latter usually requires heat, and produces a black color. There can also be a sulfide produced if there is any hydrogen sulfide or oxides of sulfur in the air.
Wiki User
∙ 6y agoAtoms change the position from a molecule to another.
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What is atomic level?
The atomic level is the finest grain of aggregation summarized by a dimensional data model. When applied to dimensions, the atomic level refers to the discrete values the dimension may assume. When applied to a dataset, the atomic level is the cell created by the intersection of all dimensions at the atomic level. The atomic level is the lowest level of detail normally stored in a multi-dimensional database.
What is happening at the atomic level to give rise to the observed energy?
The atomic level is affected by the movement of electrons so as to give rise to the observed energy. This is what is used to explain the atomic emission spectra.
What is the first theory to relate chemical changes to events at the atomic level?
Dalton's Atomic Theory
What color tube for a phenobarbital level?
Phenobarbital level
What color tube does a a1c level go in?
depacote level what color blood tube for testing
What happens at the atomic level during chemical change?
Atoms change the position from a molecule to another.
What happens to an atomic level when an element melts?
The atomic level is unchanged.
What is a mixture that appers to have the same composition color density and taste and is mixed at the atomic or molecuar level?
A mixture that appears to have the same composition, color, density, and taste, and is mixed at the atomic or molecular level is called a solution.
What is the genesis of color?
The genesis is a rainbow... The rainbow equals infinity at an atomic level.
What happens to your neopet when it is zapped by the lab ray?
It can change color and/or type of neopet! It can also level up, get more hit points ect.
What happens at the atomic level when a metal is subjected to pressure such as a blow from a hammer?
The metal cations easily slide past one another.
What happens to the atomic structure as you go down any group?
Down a group, the atomic size (energy level / shells) increases.
Why is rust an irreversible change?
because the iron and oxygen have combined on an atomic level creating the compound iron oxide and you would need to manipulate it on the atomic level to separate it.
Is Evaporation Is When Particles Escape From A Liquid?
Yes, that's basically what happens at the atomic or molecular level.
What happens at the atomic level when plasma is created?
Basically Atomic Level is either a factor which causes an affect on a particular substance in order to change its shape and molecular structure.
What is it called when a mixture that appears to the same composition color and density and is mixed at the molecular level?
Solution: A mixture that appears to have the same composition, color, density, and taste, and is mixed at the atomic or molecular level.
What makes the atomic radius change down Column of the periodic table?
the larger the highest energy level number, the larger the atomic radius (Apex)
