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Balance the following redox reaction in basic solution (you can ignore phases in this problem):

Which definition (of the choices given) is the best definition of entropy?

Consider the Voltaic Cell shown below:  The battery consists of a Silver and Nickel electrode connected externally by a wire.  The red arrow shows the direction that electrons will flow when the electrodes are connected.  Answer the following questions… Is the Silver electrode the anode or the cathode? [ans1] Which electrode will gain mass as the battery operates? [ans2] What will happen to the [Ag+] as the battery operates? [ans3] Which electrode would be marked with a (+) symbol? [ans4]

Find the value of the base b, so the graph of y=logbx{“version”:”1.1″,”math”:”y=logbx”} contains the point (1/27, -3)

Find the value of x in the logarithmic equation. Just write the number, not x= log749=x{“version”:”1.1″,”math”:”log749=x”}

The given graph is a transformation of f(x)=2x{“version”:”1.1″,”math”:”f(x)=2x”}. Describe the transformation in words. Assume no stretching or compression.

Solve the equation logbx+a+logbx-a=c{“version”:”1.1″,”math”:”logbx+a+logbx-a=c”} where base b = {b}, a = {a}, and c = {c}. Write answer to 2 decimal places. (Hint: this will use the square root property to get the final answer, after using logarithmic properties). 

The function A(t)=aebt{“version”:”1.1″,”math”:”A(t)=aebt”} models the concentration of a drug in milligrams (mg), where a= {a}, b = {b}, and t is the amount of time, in hours. How long will it take for the concentration to reach {c} mg? Round your answer to 1 decimal place. (Just write the number with no hour units).

Condense the following into a single logarithm 3-2log2x+12log2y{“version”:”1.1″,”math”:”3-2log2x+12log2y”}

Find x in the logarithmic function when a = {a} and b = {b}. Write answer as a number, do not write x =. logax=b{“version”:”1.1″,”math”:”logax=b”}