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3 years ago

2. Explain how conduction, convection and radiation all contribute to heating the Earth's

1 answer:

8 0

Answer: Conduction, radiation and convection all play a role in moving heat between Earth's surface and the atmosphere. Since air is a poor conductor, most energy transfer by conduction occurs right near Earth's surface. ... During the day, sunlight heats the ground, which in turn heats the air directly above it via conduction.

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A galvanic (voltaic) cell consists of an electrode composed of nickel in a 1.0 M nickel(II) ion solution and another electrode c

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Answer: The standard potential of the cell is 0.77 V

Explanation:

We know that:

$E^o_{Ni^{2+}/Ni}=-0.25V\\E^o_{Cu^{+}/Cu}=0.52V$

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Oxidation half reaction: $Ni(s)\rightarrow Ni^{2+}(aq)+2e^-$

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$E^o_{cell}=0.52-(-0.25)=0.77V$

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