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)

Question

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.

The iron atoms in iron oxide have more mass than pure iron.
The iron atoms in iron oxide have more mass than 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.

Answer 1

The correct statement that explains the difference in mass when iron rusts and forms iron oxide is:

Iron oxide has oxygen atoms, and pure iron does not.

This indicates that the increase in mass is due to the addition of oxygen atoms during the rusting process, resulting in iron oxide, which has a greater mass than the original pure iron.