A small quantity of compound A was applied to the mid-point of the following TLC plate’s line of application (drawing is not to scale). After development of this plate by a suitable solvent, compound A was determined to have an Rf value of 0.35. Once the solvent had evaporated from the TLC plate it was re-developed using the same solvent as before. What distance (in mm) did compound A travel during the second development? Please carry maximum number of significant figures through to final answer then round to one decimal place. Do not include units.

a galvanic cell( aka voltaic cell) and electrolytic cell

explanation:

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what are the two models

explanation:

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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