If it smells rotten and unsanitary (what class are you taking lol? this is just what i'd think)
2.2 pounds = 1kg. he would need 2.2 doses, rounded would be 2.
Answer:
Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. Iron and steel rust when they come into contact with water and oxygen – both are needed for rusting to occur.
A witness has to be at least 18 years of age. They can be a stranger or a family member. There is no rule that a person of the treatment team can't be a witness but it's is not recommended and is not advised to do so.
Hope this helps! ^-^