Rust on an artifact is an example of...
A. chemical decomposition
B. Chemical preservation
C. Physical decomposition
D. Physical preservaton
A. Chemical decomposition
Rust on an artifact is an example of chemical decomposition. To arrive at this answer, we can examine the characteristics and processes involved in rust formation.
Rust is a type of corrosion that occurs when iron or steel comes into contact with oxygen and moisture in the presence of an electrolyte (such as water). This reaction results in the formation of iron oxide, commonly known as rust. The process of rust formation involves the oxidation of iron, which breaks down the metal and causes its deterioration.
Chemical decomposition refers to the breakdown of substances into simpler components due to chemical reactions. In the case of rust, the iron in the artifact reacts with oxygen and moisture to form a new compound (iron oxide), resulting in decomposition of the original material.
Therefore, the correct answer is A) chemical decomposition.
The correct answer is C. Physical decomposition.
Rust is a form of corrosion that occurs when iron or steel reacts with oxygen in the presence of water or moisture. It is a chemical reaction that causes the iron to deteriorate and become weakened. Therefore, rust on an artifact is an example of physical decomposition.