How does connecting a metal like iron with a wire to a metal that is easier to oxidize like zinc help prevent corrosion of the iron?
A) The other metal is oxidized instead and the electrons travel to the iron, keeping it from oxidizing.
B) The other metal absorbs the electrons from the iron, which keeps the iron from undergoing oxidation.
C) The wire is acting as an oxidant and keeps the two metals from undergoing other chemical reactions.
D) There is no salt-bridge, so there is no reaction between the two metals.
E) The other metal is oxidized and adsorbs all the oxidant, keeping it away from the iron.
A
You might also like to view...
Which of the following clouds is most likely to produce drizzle?
A. cirrostratus B. cumulus C. cumulus congestus D. stratus
Compare and contrast detrital and chemical sedimentary rocks. Provide specific examples of
each group. What will be an ideal response?
Which of the following is NOT true about groundwater flow?
A. Water moves from areas where the water table is highest to areas where it is lowest. B. In some igneous groundwater reservoirs, flow is determined by the orientation of fractures. C. Excess pumping from wells can cause subsidence and reduction of porosity. D. A decrease in the gradient (slope of the water table) increases the velocity.
Name three of the top 10 rivers by discharge and where they are located
What will be an ideal response?