Question

this passage describes a chemical reaction. read the passage. then, follow the instructions below.
over 200,000 miles of train tracks have been built in the united states since the early 1800s. workers who build new train tracks often use a process called thermite welding to connect short pieces of metal track. this type of welding uses thermite powder, which is a mixture of aluminum metal (al) and ferric oxide (fe₂o₃). a worker places the powder between two pieces of track and burns it to form aluminum oxide (al₂o₃) and iron metal (fe). this process releases an enormous amount of energy that melts the two pieces of track together.
complete the table to classify the substances in this chemical reaction.

Explanation:

In a chemical reaction, reactants are the substances that start the reaction, and products are the substances formed as a result of the reaction. The passage states that "thermite powder, which is a mixture of aluminum metal (Al) and ferric oxide (Fe₂O₃)" is used (so these are reactants), and "burns it to form aluminum oxide (Al₂O₃) and iron metal (Fe)" (so these are products).

Answer:

Substance	Reactant	Product
aluminum oxide (Al₂O₃)		✔️
ferric oxide (Fe₂O₃)	✔️
iron (Fe)		✔️