Among the choices above, I think the statement that best describes an intensive property of matter is letter B which is " It depends on how a substance was formed." <span>Intensive properties are those property which does not depend upon the amount of substance present in the system. Such as refractive-index, density etc </span>
True, seafloor spreading occurs along mid-ocean ridges.
This condition is not static and is dynamic, because both the forward and reverse reactions are still occurring with the same rate and no macroscopic change is observed.
<h3>What is chemical equilibrium and example?</h3>
Chemical equilibrium is a state during a reversible chemical reaction where there is no net change in the quantities of reactants and products. When a chemical reaction is reversible, the reactants from the initial reaction are created from the products as soon as they are generated.
When the rates of the forward and reverse reactions are equal, a reaction is said to be in chemical equilibrium. All around you, there are numerous instances of chemical balance. An instance would be a bottle of effervescent refreshing drink. The liquid in the container has carbon dioxide (CO2) dissolved in it.
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Answer:
The first one
Explanation:
waves are created by friction between wind and water surface
Answer is: D) Light is emitted from an atom as an electron falls from an excited state to the ground state releasing a photon.
Electrons can jump from one energy level to another, absorbing or emitting electromagnetic radiation with a frequency ν (energy difference of the levels).
When electron jump from higher to lower energy level (shell), it emitting (releasing) energy.
For example, when the electron changes from n=4 (fouth shell) to n=2 (second shell), the photons are emitted.
Albert Einstein (1879-1955) proposed that a beam of light is a collection of discrete wave packets (photons) with energy hν, where h is Planck constant and ν is frequency.
The photons have a characteristic energy proportional to the frequency of the light.
Minimum frequency or the threshold frequency is energy below which no photoelectrons are emitted.
Above the minimum frequency, energy depends on the frequency of the light, not on the intensity of the light.