Asked by Alto Saxaphone

Which substance combines with iron in the presence of water to form rust?(1 point)
Responses

nitrogen
nitrogen

oxygen
oxygen

carbon dioxide
carbon dioxide

acid
Answered by Missyyyyyy CatieeeeeeešŸ«¶(Connex-Us Q&A 6th)
Which process is most likely responsible for the formation of limestone caves?(1 point)
Responses

hydrolysis
hydrolysis

abrasion
abrasion

carbonation
carbonation

oxidation
Answered by GPT-4o mini
The substance that combines with iron in the presence of water to form rust is **oxygen**.