Liz is exploring the different kinds of changes that can happen to substances.

After reading about the kinds of changes that occur, she saw some rust on a pipe that was going into her house. What kind of change is the formation of rust?
Reactant
Product
Physical
Chemical

1 answer

The formation of rust is a chemical change. This occurs when iron reacts with oxygen and moisture over time, resulting in the creation of iron oxide (rust). This process involves a change in the chemical composition of the substance, which is characteristic of a chemical change.