Question
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
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
Answers
GPT-4o mini
The formation of rust is a **chemical change**. Rust forms when iron reacts with oxygen and moisture in the air, resulting in a new substance (iron oxide) with different properties than the original materials. This process is not reversible through simple physical means, which also characterizes a chemical change.