In a voltaic cell based on the Cu-Zn reaction

Zn(s) + Cu2+ (aq) --> Cu(s) + Zn2+ (aq)
there is exactly 1 mole of each reactant and product. A second cell based on the Cd-Cu cell reaction
Cd(s) + Cu2+ (aq) --> Cu(s) + Cd2+ (aq)
also has exaclty 1 mole of each reactnat and product. Which of the following statements about the two cells is true?

A) The quantities of electrical energy that they can produce are the same
B) The masses of their elctrodes are the same
C) The quantities of electrical charge that are they can produce are the same
D) Their cell potentials are the same

The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .

13. calculate the initial concentration (before precipitation) of carbonate ions after the addition of each 0.05 ml of solution b to the 1.00 l beaker of solution a. divide the work among group members and write the answers in the table in model 3. assume the volume change as solution b is added is negligible. 14. notice the initial concentrations of zn2+ - and cu2+ in the table in model 3. a. explain how these were obtained from the data in model 2. b. as solution b is added and precipitates form, do these initial concentrations change? 15. use the data in model 2 to indicate the presence of precipitate (either znco3 or cuco3) after each 0.05 ml addition of solution b in model 3. 16. use the initial concentrations of carbonate ions and zinc ions to calculate the reaction quotient, qsp for the zinc carbonate scenarios in model 3. divide the work among group members and write the answers in the table in model 3. 17. use the initial concentrations of carbonate ion and copper(ii) ions to calculate the qsp for the copper(ii) carbonate scenarios in model 3. divide the work among group members and write the answers in the table in model 3.

In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)