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.
Answer:
1. four in the first energy level, four in the second energy level
2. eight in the first energy level, zero in the second energy level
3. zero in the first energy level, eight in the second energy level
4. two in the first energy level, six in the second energy level *
Explanation:
1. four in the first energy level, four in the second energy level
2. eight in the first energy level, zero in the second energy level
3. zero in the first energy level, eight in the second energy level
4. two in the first energy level, six in the second energy level *
Taking the average of more measurements decreases random error of measurement
Taking the average of many measurements is the most effective way to reduce random errors in a measurement. Because the certainty of the results grows as the number of data does, Less risk of random errors means that the value is more certain. Fewer measurements lead to less reliable data collection, which raises the likelihood of random errors.
The complete question is
Which procedure(s) decrease(s) the random error of a measurement: (1) taking the average of more measurements: (2) calibrating the instrument; (3) taking fewer measurements? Explain
To learn more about random errors:
brainly.com/question/14149934
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