5. Replicate water samples are analyzed for water hardness with the following results: 102.2, 102.8, 103.1 and 102.5ppm CaCO3. Calculate:-
(a) The standard deviation
(b) The relative standard deviation
(c) The standard deviation of the mean
(d) The relative standard deviation of the mean.​

Which of these best describes the scientific process

Strong conductivity of plasma allows it to act and react as and

According to the diagram; a) identify the anode of the cell and write the half-reaction that occurs there b) write the overall equation for the reaction that occurs as the cell operates c) calculate the value of the standard cell potential ,e cell. d)write the shorthand notation of the cell above e)indicate the flow of the electrons on the diagram