which substance combines with iron and presence of water to form rust
The substance that combines with iron and the presence of water to form rust is oxygen.
The substance that combines with iron in the presence of water to form rust is oxygen (O2).
The substance that combines with iron in the presence of water to form rust is oxygen. Rust is a common term used to describe the chemical compound called iron oxide (Fe2O3), which is formed when iron reacts with oxygen in the presence of moisture or water.
To determine which substance combines with iron to form rust, you would need to know the conditions required for rusting to occur. Here's how you can find the answer:
1. Identify the reactants: In this case, the reactants are iron, oxygen, and water.
2. Understand the reaction: Rusting is an oxidation reaction. When iron (Fe) comes into contact with oxygen (O2) and water (H2O), a chemical reaction occurs, leading to the formation of iron oxide (Fe2O3), which we commonly refer to as rust.
3. Search for information: You can search for information about the process of rusting or specifically the reaction between iron, oxygen, and water to find more detailed explanations and scientific evidence.
Remember, it is important to verify the information from reliable sources to ensure accuracy.