0
When an object rusts it gains mass.From where does the extra mass come?
Wiki User
∙ 8y ago
When an object rusts, the iron in the object combines with oxygen in the air to form iron oxide (rust), which has a greater mass than the original iron. The extra mass comes from the oxygen molecules in the air that combine with the iron to form rust.
Add your answer:
Earn +20 pts
What energy transformation in iron?
When iron rusts, a chemical reaction occurs where oxygen in the air combines with the iron. This reaction results in a release of heat energy, which is a transformation from chemical energy (stored in the iron) to thermal energy (heat).
What is the energy change that takes place in iron?
When iron rusts, it undergoes an exothermic reaction, releasing energy in the form of heat. This is because the bonds between iron atoms are broken when iron reacts with oxygen to form iron oxide, resulting in a more stable compound.
Are coins iron or steel?
Coins are typically made from a combination of metals such as copper, nickel, and zinc, but not iron or steel. Iron and steel are not commonly used in coin production due to their susceptibility to corrosion and their weight compared to other metals.
Why isn't rust attracted to a magnet?
Rust is mostly hydrated Fe2O3 and is not "ferromagnetic" (forming strong magnetic fields) because the atoms of iron are separated by the atoms of oxygen (and molecules of water). However, rust (and the Fe2O3 mineral hematite) responds to an electromagnetic field, and the weak attraction is now being used to separate hematite from waste ore, increasing the amount of iron extracted from a given amount of ore.
What is a chemical and physical change?
Physical change - a change in a substance that does not involve a change in the identity, including a change in state between solid, liquid and gas phases.Chemical change - a change which one or more substances are converted into different substances, some indications are burning, rusting, color changes etc.physical change can be changedbut in chemical change chemicals are mixed togetherfor example if we are sick that is a physical changewe have to change healthy as wellwhen we mix salt in a dish,can we take out that again?neverthis is chemical changeA physical change is when the object undergoes a change that can be reversed, such as mixing water with salt, melting ice, or freezing or vaporizing water. A chemical change is a change that changes a substance into something else entirely, and therefore cannot be reversed. Examples would be mixing vinegar and baking soda or turning batter into bread.chemical change is when during a chemical reaction a new substance will be formed while in physical change no new substances are formed
Why does an object rust?
an object rusts when it is attached by air,water and other chemicals
What object rusts the fastest?
Anything made of pure iron.
Does the size of an object affect how much it rusts?
No,the type of metal is the only thing that effects this.:)
What type of reaction occurs and how does the mass of the object after rusting compare with its original mass?
Rusting is a chemical reaction known as oxidation. When a metal object rusts, it gains mass because the iron in the metal reacts with oxygen to form iron oxide (rust). The mass of the object after rusting will be greater than its original mass due to the addition of the iron oxide.
When iron rusts does its weight increase or decrease?
When iron rusts, its weight increases. Rust is a form of iron oxide that forms on the surface of iron when it reacts with oxygen and water. This process of rusting involves the addition of oxygen atoms to the iron metal, leading to an increase in weight.
What is the plural of rust?
The plural of rust is rusts. As in "a nail left in the open rusts easily".
What transition metal rusts when exposed to oxygen?
Iron is the transition metal that rusts when exposed to oxygen, forming iron oxide.
What Basidiomycota have caused damage to wheat corn and other crops?
rusts and smuts
What rusts faster?
iron
Is lron rusts is a chemical?
no it a physical
How carbon act with steel?
it rusts
What do wheat rusts eat?
Wheat rusts "eat" wheat. It's a type of fungus that grows parasitically on wheat and related plants.
