Chemistry, 02.12.2021 17:10 allieliquori
A penny weighs 2.50 g and it is made of an inner part of Zn and a coat of Cu that is added using electroplating. If a 1.00L solution with a [Cu2+] = 4.95M is used to electroplate Cu, what is the concentration of the solution after it has been electrolyzed for 17.18h under a current of 2.09A? The half-cell equation is: Cu2+ + 2e- -> Cu and E° =+0.34V
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Chemistry, 21.06.2019 15:00
Which of the following elements is a representative element? a. chromium (cr) b. aluminum (al) c. mercury (hg) d. silver (ag)
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Chemistry, 22.06.2019 14:10
16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.
Answers: 2
Chemistry, 23.06.2019 03:30
In general metals get as you move from left to right across the periodic table.
Answers: 1
A penny weighs 2.50 g and it is made of an inner part of Zn and a coat of Cu that is added using ele...
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