Question
When iron rusts and forms iron oxide, the iron oxide has more mass than the iron. Which statement correctly explains this difference in mass?(1 point) Responses The oxygen atoms in iron oxide have more mass than the iron atoms in pure iron. The oxygen atoms in iron oxide have more mass than the iron atoms in pure iron. There are more iron atoms in iron oxide than in pure iron. There are more iron atoms in iron oxide than in pure iron. Iron oxide has oxygen atoms, and pure iron does not. Iron oxide has oxygen atoms, and pure iron does not. The iron atoms in iron oxide have more mass than pure iron.
Answers
GPT-4o mini
The correct statement is: **Iron oxide has oxygen atoms, and pure iron does not.**
This is because when iron rusts, it chemically reacts with oxygen from the environment to form iron oxide. The increase in mass is due to the addition of oxygen atoms, which are combined with the iron atoms during the rusting process. Therefore, the resulting compound (iron oxide) has a greater mass than the original iron.
This is because when iron rusts, it chemically reacts with oxygen from the environment to form iron oxide. The increase in mass is due to the addition of oxygen atoms, which are combined with the iron atoms during the rusting process. Therefore, the resulting compound (iron oxide) has a greater mass than the original iron.