Question

burning a piece of wood in fire can be best described as a
chemical change because the atoms in wood change their state.
physical change because the atoms in wood are turned into a gaseous product.
chemical change because the atoms in wood and oxygen are rearranged.
physical change because the atoms in wood are turned into black ash.

Explanation:

A chemical change involves the rearrangement of atoms to form new substances. When wood burns, it reacts with oxygen. The atoms in wood and oxygen are rearranged to form new substances like carbon dioxide, water vapor, and ash (a residue). A physical change only changes the state or appearance of a substance without altering its chemical composition. In the case of burning wood, it is not just a change of state (as in the first option - atoms don't just change state in a simple sense here) or just forming a gaseous product (second option - physical change is not about forming a gaseous product in this context) or just forming ash (fourth option - ash is a result of a chemical reaction). The key is the rearrangement of atoms (from wood and oxygen) to form new substances, which is characteristic of a chemical change.

Answer:

chemical change because the atoms in wood and oxygen are rearranged.