Sulfuric Acid

Question 1

Which of these methods is/are utilized to help prevent the rusting of iron?

I.Painting ironII.Treating iron with sulfuric acidIII.Coating iron with a metal that is more likely to oxidize

I only

II only

I and III

I, II, and III

III only

Question 2

Coating iron with a more oxidative metal than itself to prevent rusting is known as _____.

scrubbing

galvanizing

proofing

protecting

seal coating

Question 3

A sliced apple will turn brown when exposed to air because _____.

oxygen in the air oxidizes the chemicals present in the apple

oxygen in the air reduces the chemicals present in the apple

nitrogen in the air oxidizes the chemicals present in the apple

nitrogen in the air reduces the chemicals present in the apple

hydrogen in the air reduces the chemicals present in the apple