Chemistry, 18.12.2019 22:31 bvghchg4401
which reaction occurs at the anode of a galvanic cell that has a zinc
electrode in an electrolyte with zinc ions and a copper electrode in an
electrolyte with copper ions? the reduction potential for the reduction of cu2+
= 0.34 v. the reduction potential for the reduction of zn2+ = -0.76 v.
o a. zn2+(aq) + 2e → zn(s)
o b. cu2+ (aq) + 2e i→ cu(s)
o c. cu(s) → cu2+ (aq) + 2e
o
d. zn(s) → zn2+ (aq) + 2e
Answers: 1
Chemistry, 22.06.2019 02:30
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Chemistry, 22.06.2019 09:00
Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?
Answers: 1
Chemistry, 22.06.2019 21:00
As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.
Answers: 1
Chemistry, 22.06.2019 21:30
Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.
Answers: 1
which reaction occurs at the anode of a galvanic cell that has a zinc
electrode in an electrol...
electrode in an electrol...
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