How long (in hours) will a current of 2.00 A need to be applied to produce 50.0 grams of aluminum metal from molten Al2O3

Explanation:

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In this case, given the mass of aluminum metal which can undergo the following reduction from aluminum oxide:

We can see three moles of electrons are transferred per mole of aluminum, thus, we obtain:

Next, we compute the charge carried by those electrons via the faraday's constant:

Finally, considering the applied current, we compute the elapsed time in hours to achieve such electrolysis:

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answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

: )

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .