Rust results from iron’s reaction to oxygen. An iron nail gains mass when it rusts. How does this reaction support the law of conservation of mass?
Answer
A
The increased mass of the rusted nail is an exception to the law of conservation of mass since the rusted nail’s mass increases.
B
The mass of the rusted nail increases because iron attracts more protons from the air.
C
The mass of the rusted nail equals the mass of iron and the oxygen from the air it reacted with to form the rust.
D
The increased mass of the rusted nail results from the rearrangement of protons and neutrons within oxygen, according to the law of conservation of mass.