The correct answer is e.
Entropy is the measure of the disorderliness in a changing and closed system. The higher the entropy in a system, the higher the disorderliness and the lower the tendency of the system to usefully work.
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Physical changes can be reversed whereas chemical changes can not.
Rain turning to snow is a physical change.
The snow could certainly be changed back into rain.
An example of a chemical change is making toast.
Once the toast is made, it is not possible to reverse.
In short, it is a physical change.
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- Hannah ❤
A rain gauge<span> (also known as an udometer, pluviometer, or an ombrometer) is an instrument used by meteorologists and hydrologists to gather and measure the amount of liquid precipitation over a set period of time.
i hope that helps</span>
The molar mass of K is 39, Cr is 52, and O is 16. The rough calculation of these numbers are 294.