1)If you were to apply a substance to prevent rust on a steel hammer, which of the following would you expect to protect the iron using the same mechanism as the polymer coating? Select all that apply.
2)Identify the correct statement(s) with regards to the last part of Experiment 6: Zinc in Contact with Magnesium
If you were to apply a substance to prevent rust on a steel hammer, which of the following would you expect to protect the iron using the same mechanism as the polymer coating? Select all that apply. Rubber B. Copper C. Vinegar Latex paint E. Wax Zinc QUESTION 5 2 points Save Answer Identify the correct statement (s) with regards to the last part of Experiment 6: Zinc in Contact with Magnesium A. As the reaction proceeds, Copper metal is deposited on the exposed surface of the nail. B. Magnesium forms a physical barrier prevent the Cu(NO3)2 solution from coming into contact with the zinc-plated galvanized na Aluminum metal cannot be used instead of magnesium to prevent corrosion of zinc under the same conditions. D. Magnesium metal could be used as a suitable coating for both galvanized and non-galvanized nails to protect both iron and zinc from corrosion. Magnesium is oxidized from Mg(s) to 2+ when in contact with the Cu(NO3)2 solution Mg
Identify the correct statement(s) with regards to the last part of Experiment 6: Zinc in Contact with Magnesium
A.
The addition of sodium chloride is necessary for Cu(NO3)2 solution to corrode the zinc-plated galvanized nail
B.
As the reaction proceeds, more zinc metal is deposited on the exposed surface of the nail.
C.
Magnesium forms a physical barrier prevent the Cu(NO3)2 solution from coming into contact with the zinc-plated galvanized nail.
D.
Magnesium is oxidized from Mg(s) to Mg2+ when in contact with the Cu(NO3)2 solution
Magnesium metal is able to shuttle electrons easily to the zinc, thereby reducing the amount of zinc undergoing corrosion from the Cu(NO3)2 solution
QUESTION SIX - Make three matches with the following metals and a substance that may act as a suitable sacrificial electrode. All three metals have unique choices, you CANNOT reuse choices (for Example: if you pair Nickel metal with A- you cannot use A again for another metal)
