Why would iron filings rust faster than an iron nail?

Rust forms on iron filings faster than on a large iron block

Explanation:

Because the surface area exposed to air in the refrigerator is greater than its area by mass, the rust-forming reaction occurs faster.

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

hope this : -)

tony (lordcaos066)