Answer to Question #262604 in Organic Chemistry for aya

Question

11. Why is it not practical to use stainless steel to build structures such as bridges that are prone to corrosion?

a) Stainless steel will corrode quickly if the protective coating is broken.

b) The chromium used in stainless is too expensive.

c) Stainless steel is not strong enough.

d) The carbon used to make stainless steel is too expensive.

12. A galvanized nail is coated with what metal?

a) tin

b) chromium

c) aluminum

d) zinc

13. In the Factors that Affect Corrosion Lab what was the purpose of the layer of oil on top of the liquid in some of the experimental set-ups?

a) to coat the steel wool with a protective layer of oil

b) to prevent the water from evaporating

c) to prevent oxygen from dissolving in the water di to mix with the water to create an electrolyte solution for he redox reaction

14 Generally which of the following factors decreases the rate of iron corrosion?

a) the presence of salt

b) contact with a more reactive metal

c) acidic conditions

d) mechanical stress, such as bending

Answer 1

11) a) Stainless steel will corrode quickly if the protective coating is broken.

12. d) zinc

13. c) to prevent oxygen from dissolving in the water

14. b) contact with a more reactive metal