Answer:
D)The sound quality for these waves cannot be compared.
Explanation:
I've done it on e2020
Answer:
The standard cell potential of the reaction is 0.78 Volts.
Explanation:

Reduction at cathode :
Reduction potential of
to Cu=
Oxidation at anode:

Reduction potential of
to Fe=
To calculate the
of the reaction, we use the equation:

Putting values in above equation, we get:

The standard cell potential of the reaction is 0.78 Volts.
35 Celsius minus the average 20 Celsius. going to be 15. let me know if u need anything else.
Answer:C
Explanation: The mass is still the same even though they took it apart.