Answer:
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Explanation:
The weathering process caused by cycles of freezing and thawing of water in surface pores, cracks, and other openings
A.) The reaction is Exothermic
You can't really describe it but this is what it looks like http://www.chemspider.com/Chemical-Structure.453291.html
The complete question is shown in the image attached to this answer.
Answer:
C
Explanation:
Let us quickly remember that the EMF of a cell under non standard conditions in given by the Nernst equation.
This equation states that;
E = E°cell - 0.592/n log Q
Where
E = EMF under non standard conditions
E°cell= standard EMF of the cell
n = number of electrons transferred
Q = reaction quotient
If the reaction quotient is greater than 1 then cell potential is less than the standard cell potential.
The cell that generates the lowest cell potential is the cell depicted in option C because Q has the greatest positive value(Q<1).