which substance combines with iron in the presence of water to form rust?
Oxygen
acid
nitrogen
carbon dioxide
3 answers
The substance that combines with iron in the presence of water to form rust is oxygen.
which process is most likely responsible for the formation of limestone caves?
oxidation
abrasion
carbonation
hydrolysis
oxidation
abrasion
carbonation
hydrolysis
The process most likely responsible for the formation of limestone caves is carbonation.