A galvanic cell is prepared using copper and silver. Its cell notation is shown below: Cu(s) | Cu2+(aq) || Ag+(aq) | Ag(s) Which of the following processes occurs at the cathode? A. Cu(s) → Cu2+(aq) + 2e- B. Cu2+(aq) + 2e- → Cu(s) C. Ag+(aq) + e- → Ag(s) D. Ag(s) → Ag+(aq) + e- E. Cu(s) + 2Ag+(aq) → Cu2+(aq) + 2Ag(s)
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A galvanic cell is prepared using copper and silver. Its cell notation is shown below:
Cu(s) | Cu2+(aq) || Ag+(aq) | Ag(s)Which of the following processes occurs at the cathode?
A. Cu(s) → Cu2+(aq) + 2e-
B. Cu2+(aq) + 2e- → Cu(s)
C. Ag+(aq) + e- → Ag(s)
D. Ag(s) → Ag+(aq) + e-
E. Cu(s) + 2Ag+(aq) → Cu2+(aq) + 2Ag(s)
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Copper is electroplated from a CuSO4 solution. A constant current of 4.54 A is applied by an external power supply. How long (minutes) will it take to deposit 0.985 g of Cu?
(the answer should be entered with 3 significant figures; do not enter units; give answer in normal notation--examples include 1.23 and 120. and -123 and 123. and 12.3)
DOnt need work shown just answer asap
Predict the sign of ΔSorxn (positive or negative) for the following reactions:
CH3OH(l) → CH3OH(s)
CH4(g) + H2O(g) → CO(g) + 3 H2(g)
Na2CO3(s) + H2O(g) + CO2(g) → 2 NaHCO3(s)
methanol(g, 400 K) → methanol(g, 500 K)
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