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Is iron and rust homogeneous or heterogeneous?
Well, iron fillings can't really be a mixture, since there aren't two different substances here. ________________________ But to answer the question- 1. Iron Filings are homogeneous as they are of the same or similar kind (from the definition of homogeneous). 2. They are a homogeneous substance being a physical material which has discrete existence (from the definition of substance).
Why does paint protect iron from rusting?
Painting of iron prevent it from rusting because it prevent the iron articles coming in Contact with oxygen, or water vapours present in the air.
How do you prove salt water rust iron faster than fresh water?
Easy. Find two things made from the same kind of iron. (Old-fashioned cut nails are available at hardware stores, and they're iron.) Mix up a batch of salt water, and pour it into a bowl. Pour the same amount of fresh water into an identical bowl. Then add the same number of nails to each bowl. Every day take a picture of the two bowls side-by-side.
When two substances combine to form a mixture the properties of substances what is it?
i have no idea :)
Does iron rust faster in salt or fresh water?
Rust is essentially oxidation, or a chemical interaction involving oxygen. When oxidation occurs in some elements, a thin film is formed as a result--such as the green layer that copper acquires. Other elements, such as iron, show rust as evidence of oxidation. If iron--or metal related to iron--is exposed to an environment both oxygen-rich and friendly toward the catalyst, then the oxidation process will begin. Molecules of iron at the surface of the iron object will exchange atoms with the oxygen in the air, and what atoms are left will form a new substance, the reddish-brown rust.Oxidation is an electrochemical process that acts somewhat like a battery, exchanging small amounts of electricity. Like batteries, a solution helps this process by allowing electrons to move more easily between the two elements, and also like batteries, different solutions work better than others. Water takes some of the atoms and changes them into a light form of acid as the oxidation process continues, which helps metal rust even faster.This acidic transformation occurs with pure water, but when the water is already salty it starts out as a minor acid and becomes an even more powerful electrolyte, facilitating the rusting process. There is then a hierarchy in the rust process. Rust does not easily form in dry climate, but in a wet climate the oxygen can access the metal more easily through the water vapor, and rust occurs much faster. Pure water forms an acidic solution and allows the oxidation process to happen more easily, and salty water works even better since it is already a catalyst. Prime rust conditions occur when the metal is regularly exposed to salt water and air.
What two substances must be present for iron to rust?
Iron must come into contact with oxygen and water for it to rust. This process is known as oxidation, where the iron reacts with oxygen in the presence of water to form iron oxide, the reddish-brown compound known as rust.
What two things need to be present for iron to rust?
Water and oxygen
What two substances react to make rust?
Iron and oxygen react to form rust, which is primarily composed of iron oxide. Rusting occurs when iron is exposed to water and oxygen, resulting in the formation of iron oxide on the surface of the metal.
What two substances causes rusting?
Rust is a chemical change and indicates a reaction do to the dramatic color change. It is the result of an oxide. So, there are NO substances needed for steel to rust. Even though steel itself is an alloy. :P However, you do need one element: OXYGEN!==========================Answer #2:Rust is iron oxide. In order for it to form,iron and oxygen must be present. Iron isan essential component of steel.
Which two substances must be present for an iron object to rust?
For the oxidation of iron to occur, that is for ferric oxide to form, there must be oxygen present. There must also be water present.
What 2 elements make up rust?
Iron and oxygen
What two kinds of atoms are rust made out of?
Rust is a compound of iron and oxygen.
Is rust a compound?
yes rust is a compound because it is a formed by the reaction between Iron and Oxygen. These two react to give Iron Oxide which is called as rust. Edited by Dr.J. - The iron oxides that is rust is the Fe2O3 variety.
What two elements create iron oxide?
Iron and oxygen are the two elements that combine to create iron oxide. In the case of rust, iron reacts with oxygen in the presence of water to form iron oxide, commonly known as rust.
What two substances that cause metals to rust faster?
Iron in the presence of oxygen and water, or air moisture, will combine to form Iron Oxide or it more common name rust. But Iron can also combine with chlorine in an oxygen free environment such as re-bars (reinforced concrete post) to form a green rust called Fougerite.
How many atoms of iron are in one molecule of rust?
Rust is generally thought of as a compound of iron and oxygen. So, there are two types of elements in rust. Additionally, because iron is a metal and oxygen is a non-metal, those two elements combine ionically, so it is incorrect to consider a representative particle of rust a molecule. It is accurate to refer to it as a formula unit, or simply a particle.
What are the two elements that make up rust?
Iron and oxygen
