Question

what is rust and why does it occur

Answer 1

RUST ➡️ ʀᴜsᴛ ɪs ᴀᴄᴛᴜᴀʟʟʏ ᴀɴ ɪʀᴏɴ ᴏxɪᴅᴇ. 
ᴡʜᴇɴ ɪʀᴏɴ ɪs ᴇxᴘᴏsᴇᴅ ᴛᴏ ᴏᴘᴇɴ ᴀɪʀ  ᴀɴᴅ ᴄᴏᴍᴇs ɪɴ ᴄᴏɴᴛᴀᴄᴛ ᴡɪᴛʜ ᴍᴏɪsᴛᴜʀᴇ  ɪᴛ sᴛᴀʀᴛs ʀᴜsᴛɪɴɢ. ɪᴛ ɪs ᴀ ʀᴇᴅ ᴏxɪᴅᴇ  ғᴏʀᴍᴇᴅ ʙʏ ᴛʜᴇ ʀᴇᴀᴄᴛɪᴏɴ ᴏғ ɪʀᴏɴ ᴀɴᴅ   ɪɴ ᴛʜᴇ ᴘʀᴇsᴇɴᴄᴇ ᴏғ ᴡᴀᴛᴇʀ ᴏʀ  ᴍᴏɪsᴛᴜʀᴇ ɪɴ ᴛʜᴇ ᴀᴛᴍᴏsᴘʜᴇʀᴇ.

Hope this helps you mate ☺️☺️✨✨✌️✌️

Answer 2

An orange - brown material called rust . It formed on the surface of the iron objects. Rust is actually iron oxide formed by the reaction of iron with atmospheric oxygen in the presence of moisture . The rusting of iron is, therefore , a chemical change.. Rusting can be prevented by coating the iron surface with oil , grease or paint . This layer prevents iron from coming in contact with air and moisture.. However , rusting can take place if there was a a crack in the coating...