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.
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.
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.
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.
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.
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.
Answers
GPT-4o mini
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 is because rusting involves the chemical reaction of iron with oxygen, resulting in the formation of iron oxide (rust), which contains both iron and oxygen. The addition of oxygen atoms increases the mass of the resulting compound compared to the mass of the pure iron that was initially present.
**Iron oxide has oxygen atoms, and pure iron does not.**
This is because rusting involves the chemical reaction of iron with oxygen, resulting in the formation of iron oxide (rust), which contains both iron and oxygen. The addition of oxygen atoms increases the mass of the resulting compound compared to the mass of the pure iron that was initially present.