Answer:
7.01 is the answer of the [H+] of a solution with a pH of 4.78
Electrons are emitted from the surface of a metal in photoelectric effect.
<h3>What is the photoelectric effect?</h3>
The photoelectric effect is the emission of electron from the surface of a metal when light is shone on the surface..
For electrons to be emitted, the light must have a certain frequency known as threshhold frequency.
Therefore, electrons are emitted from the surface of a metal in photoelectric effect.
Learn more about photoelectric effect at: brainly.com/question/21320305
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Answer:
reactant + reactant = product + product
Explanation:
(pretend = is the arrow)
the reaction is shown in the equation by modelling how the reactants react with eachother to form the products on the other side of the arrow
<span>Li2O2 is the formula
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The Velocity of a Wave<span>. If the crest of a slinky </span>wave<span> moves a distance of 20 meters in 10 seconds, then the speed of the ocean </span>wave<span> is 2 m/s. ... For a given </span>velocity<span>, if you increase the frequency, the wavelength </span>will<span> be shortened.</span>
